Ho scritto questo listato in Java Script ES5,  e non vorrei programmare nelle funzionalita’ moderne di ES6.  Vorrei un’analisi di questo listato in lingua italiana, in particolare segnalando 1 ridondanza di codice oppure di controlli logici, 2 ottimizzazioni, 3 compattazioni, 4 ricerca di maggiore efficienza e velocita’ di esecuzione del codice. Inoltre per ogni punto da 1 a 4 se vorrai darmi un suggerimento specifico sara’ gradito.
Ho scritto questo listato in JavaScript ES5 e preferirei non utilizzare le funzionalità moderne di ES6. Vorrei un’analisi di questo listato in lingua italiana, con particolare attenzione ai seguenti punti   
:
1.	Ridondanza di codice o controlli logici: Identificare eventuali ripetizioni inutili o controlli logici superflui.
2.	Ottimizzazioni: Suggerire miglioramenti per rendere il codice più efficiente.
3.	Compattazioni: Proporre modi per rendere il codice più conciso.
4.	Ricerca di maggiore efficienza e velocità di esecuzione: Consigli su come migliorare le prestazioni del codice.
Per ogni punto da 1 a 4, apprezzerei suggerimenti specifici indicando il PRIMA, cioe' il codice orginale e il DOPO, con le modifiche da te proposte.
 var CONFIG = {
    ORDER_SIDE: 'BID',
    SIZE: 1,
    MAX_OPERATIONS: 8,
    LEVELS: { BID: 6, ASK: 6 },
    SECONDS: 5,
	TICK: 1,
    MONITORING_MODE: 'MONITORA_yourlevel'
};

var separator = "---------------------------------------------------\r\n";
var cachedBookState = null;
var lastBidPrice, lastBidQuantity, lastAskPrice, lastAskQuantity;

function mapBookData(originalBook) {
function mapSide(sideData, maxLevel) {
    var data = { Prices: [], Quantities: [] };
    if (sideData && sideData.Price && sideData.Quantity) {
        for (var level = 0; level <= maxLevel; level++) {
            data.Prices.push(sideData.Price(level));
            data.Quantities.push(sideData.Quantity(level));
        }
    }
    return data;
}

    return {
        BID: mapSide(originalBook.Bid, CONFIG.LEVELS.BID),
        ASK: mapSide(originalBook.Ask, CONFIG.LEVELS.ASK)
    };
}

function calculateTick(bidPrices, askPrices) {
    var minDifference = Infinity;
    var binSize = 0.005;
    var decimalPlaces = 3;
    var len = bidPrices.length;
    
    for (var i = 0; i < len - 1; i++) {
        var bidDiff = bidPrices[i] && bidPrices[i+1] ? Math.abs(bidPrices[i] - bidPrices[i+1]) : Infinity;
        var askDiff = askPrices[i] && askPrices[i+1] ? Math.abs(askPrices[i] - askPrices[i+1]) : Infinity;
        if (bidDiff < minDifference) {
            minDifference = bidDiff;
        }
        if (askDiff < minDifference) {
            minDifference = askDiff;
        }
    }
    
    if (minDifference === Infinity) {
        Log("Tick calcolato: 0");
        return 0;
    }
    
    var tick = Math.floor(minDifference / binSize) * binSize;
    Log("Tick calcolato: " + tick.toFixed(decimalPlaces));
    return parseFloat(tick.toFixed(decimalPlaces));
}

function addLevels(logParts, side, book) {
    var maxLevel = CONFIG.LEVELS[side];
    var sideData = book[side];
    for (var level = 0; level <= maxLevel; level++) {
        logParts.push("Level " + level + ": Price = " + sideData.Prices[level] +
                      ", Quantity = " + sideData.Quantities[level] + "\n");
    }
}

function logFullBook() {
    var book = UserContext.book;
    var logParts = [separator, "BID:\n"];
    addLevels(logParts, 'BID', book);
    logParts.push(separator, "ASK:\n");
    addLevels(logParts, 'ASK', book);
    var tick = calculateTick(book.BID.Prices, book.ASK.Prices);
    logParts.push(separator);
    Log(logParts.join(''));
}

var BookUtils = {
    KEYS: ['bidPrice', 'bidQuantity', 'askPrice', 'askQuantity'],
    SIDES: { BID: 'BID', ASK: 'ASK' },
    TYPES: { PRICE: 'Price', QUANTITY: 'Quantity' },

    getData: function(book, side, level, type) {
    return book && book[side] && book[side][type + 's'] ? book[side][type + 's'][level] : undefined;
},

hasBookStateChanged: function(newState) {
    if (!cachedBookState) return true;
    for (var i = 0; i < this.KEYS.length; i++) {
        if (cachedBookState[this.KEYS[i]] !== newState[this.KEYS[i]]) {
            return true;
        }
    }
    return false;
},

createBookState: function(book) {
    var bidData = { 
        price: this.getData(book, this.SIDES.BID, CONFIG.LEVELS.BID, this.TYPES.PRICE), 
        quantity: this.getData(book, this.SIDES.BID, CONFIG.LEVELS.BID, this.TYPES.QUANTITY) 
    };
    var askData = { 
        price: this.getData(book, this.SIDES.ASK, CONFIG.LEVELS.ASK, this.TYPES.PRICE), 
        quantity: this.getData(book, this.SIDES.ASK, CONFIG.LEVELS.ASK, this.TYPES.QUANTITY) 
    };

    return {
        book: book,
        bidPrice: bidData.price,
        bidQuantity: bidData.quantity,
        askPrice: askData.price,
        askQuantity: askData.quantity
    };
},

    getBookState: function(book) {
        var newState = this.createBookState(book);
        
        if (this.hasBookStateChanged(newState)) {
            cachedBookState = newState;
            this.updateLastValues(newState);
        }

        return cachedBookState;
    },

    updateLastValues: function(state) {
        lastBidPrice = state.bidPrice;
    lastBidQuantity = state.bidQuantity;
    lastAskPrice = state.askPrice;
    lastAskQuantity = state.askQuantity;
    }
};

var OrderUtils = {
    execOrder: function(side, stock, price, size) {
        return (side === 'BID') ? OrderManager.Buy(stock, price, size) : OrderManager.Sell(stock, price, size);
    },
    updateOrderContext: function(order, side, price) {
        UserContext.order.current = order;
        UserContext.prices[side].oldLevel = price;
        return order;
    },
    processOrModOrder: function(side, stock, price) {
        var currentOrder = UserContext.order.current;
        return currentOrder 
            ? (currentOrder.Price === price ? currentOrder : this.updateOrderContext(OrderManager.Modify(currentOrder.OrderCode, price), side, price))
            : this.updateOrderContext(this.execOrder(side, stock, price, CONFIG.SIZE), side, price);
    },
    deleteOrder: function(orderCode) {
        return OrderManager.Delete(orderCode);
    }
};

var Helper = {
    messages: {
        'Initialization Complete': "Inizializzazione completata:\nBid Price 0: {bidPrice}\nAsk Price 0: {askPrice}\n",
        'Order Action': 'Ordine {action}: {orderCode}\n',
        'Order Deleted': 'Ordine cancellato: {orderCode}\n',
        'LevelChange': "Livello da {lastLevel} all'attuale livello {priceLevel}\n",
        'PriceChange': "Prezzo da {previousPrice} all'attuale prezzo {currentPrice}\nOra: {currentTime}\r\n" + separator,
        'message': "{message}\r\n" + separator
    },
    formatMessage: function(template, data) {
        return template.replace(/{(\w+)}/g, function(match, key) {
            return data[key] || match;
        });
    },
    formatState: function(bookState) {
        var book = UserContext.book;
        return separator +
        "Bid Price \tBid Quant.\tAsk Price \tAsk Quant.\r\n" +
        separator +
        book.BID.Prices[0] + "\t\t" + book.BID.Quantities[0] +
        "\t\t" + book.ASK.Prices[0] + "\t\t" + book.ASK.Quantities[0] + "\r\n" +
        separator +
        "Numero Operazione: " + UserContext.status.numOperazione + "\r\n" +
        separator;
    },
log: function(type, data, includeFormattedState) {
    includeFormattedState = includeFormattedState !== false; 
    var template = this.messages[type];
    if (!template) return;
    var message = separator + this.formatMessage(template, data || {});
    var typesWithState = { 'Initialization Complete': true, 'LevelChange': true };
    if (includeFormattedState && typesWithState[type]) {
        message += this.formatState(BookUtils.getBookState(UserContext.book));
    }
    Log(message);
},
    priceDirection: function(targetPrice, oldPrice) {
        return (targetPrice > oldPrice) - (targetPrice < oldPrice);
    }
};

function getTargetPriceLevel(side) {
    return (CONFIG.MONITORING_MODE === 'MONITORA_1Level' ? 0 : CONFIG.LEVELS[side] - 1);
}

function initializePrices(prices, levels) {
    return {
        BID: { current: prices.BID[0], oldLevel: prices.BID[levels.BID] },
        ASK: { current: prices.ASK[0], oldLevel: prices.ASK[levels.ASK] }
    };
}

function setupTradeContext() {
    var originalBook = mapBookData(Book(ps));
    var isMonitorOneLevel = (CONFIG.MONITORING_MODE === 'MONITORA_1Level');
    var sideLevels = {
    BID: isMonitorOneLevel ? 0 : CONFIG.LEVELS.BID - 1,
    ASK: isMonitorOneLevel ? 0 : CONFIG.LEVELS.ASK - 1
};
    var pricesBID = originalBook.BID.Prices;
    var pricesASK = originalBook.ASK.Prices;

   UserContext = {
        book: originalBook,
        order: { current: null },
        status: { run: true, secondCount: 0, numOperazione: 0 },
        prices: initializePrices({ BID: pricesBID, ASK: pricesASK }, sideLevels),
        targetPriceLevels: sideLevels
    };
	
    var execOrder = OrderUtils.execOrder;
    var updateOrderContext = OrderUtils.updateOrderContext;
    var getData = BookUtils.getData;

    var initialPrice = getData(originalBook, CONFIG.ORDER_SIDE, sideLevels[CONFIG.ORDER_SIDE], 'Price');
    var initialOrder = updateOrderContext(
        execOrder(CONFIG.ORDER_SIDE, stock, initialPrice, CONFIG.SIZE),
        CONFIG.ORDER_SIDE,
        initialPrice
    );

Helper.log('Initialization Complete', { bidPrice: UserContext.prices.BID.current, askPrice: UserContext.prices.ASK.current }, true);
Helper.log('Order Action', { action: 'inserito', orderCode: initialOrder.OrderCode }, false);
logFullBook();

    manageCycle();  
}

function manageCycle() {
    var status = UserContext.status;
    if (checkOps() || status.secondCount < CONFIG.SECONDS) return;
    var bookData = Book(ps);
    var mappedBook = mapBookData(bookData);
    UserContext.book = mappedBook;
    var orderSide = CONFIG.ORDER_SIDE;
    priceUpdate(orderSide, mappedBook);
    status.secondCount = 0;
}

function priceUpdate(side, book) {
    var status = UserContext.status;
    var prices = UserContext.prices[side];
    var targetPriceLevel = UserContext.targetPriceLevels[side];
    var targetPrice = book[side].Prices[targetPriceLevel];
    var oldPrice = prices.oldLevel;
    var maxLevel = CONFIG.LEVELS[side];

    if (targetPrice === oldPrice) return;

    var newOrder = OrderUtils.processOrModOrder(side, ps, targetPrice);
    if (!newOrder) return;

    prices.current = targetPrice;
    var direction = Helper.priceDirection(targetPrice, oldPrice);
    var levelDifference = maxLevel + direction;
    Helper.log('LevelChange', { lastLevel: levelDifference, priceLevel: targetPriceLevel }, true);
    status.secondCount = 0;
    status.numOperazione++;
}

function checkOps() {
    var status = UserContext.status;
    if (status.numOperazione < CONFIG.MAX_OPERATIONS) {
        return false;
    }
    var currentOrder = UserContext.order.current;
    if (currentOrder) {
        OrderUtils.deleteOrder(currentOrder.OrderCode);
        Helper.log('Order Deleted', { orderCode: currentOrder.OrderCode });
        status.run = false;
        return true;
    }
    return false;
}

var eventHandlers = {};
eventHandlers[TSEventType.Price] = function(ctx) {
    var price = Val(ps, "LAST");
    if (ctx.lastPrice === price) return;
    Helper.log('PriceChange', {
        previousPrice: ctx.lastPrice,
        currentPrice: price,
        currentTime: Now().ToString("HH:mm:ss.ff")
    });
    ctx.lastPrice = price;
};
eventHandlers[TSEventType.Time] = function(ctx) {
    ctx.status.secondCount++;
    manageCycle();
};

function handleEvent(context, type) {
    eventHandlers[type] && eventHandlers[type](context);
}

function marketEvent() {
    if (!UserContext.status.run) return;
    var originalBook = Book(ps);
    var mappedBook = mapBookData(originalBook);
    UserContext.book = mappedBook;

    handleEvent(UserContext, SystemContext.EventType);
}

if (SystemContext.IsFirst) setupTradeContext();

marketEvent();