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, indicano 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,
    MONITORING_MODE: 'MONITORA_yourlevel'
};

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

function isValidSideData(sideData) {
    return typeof sideData.Price === 'function' && typeof sideData.Quantity === 'function';
}

function mapSideData(side, sideData, maxLevel) {
    var prices = new Array(maxLevel + 1);
    var quantities = new Array(maxLevel + 1);
    var isValid = isValidSideData(sideData);
    for (var level = 0; level <= maxLevel; level++) {
        prices[level] = isValid ? sideData.Price(level) : 0;
        quantities[level] = isValid ? sideData.Quantity(level) : 0;
    }
    return { Prices: prices, Quantities: quantities };
}

function mapBookData(originalBook) {
    return {
        BID: mapSideData('BID', originalBook.Bid, CONFIG.LEVELS.BID),
        ASK: mapSideData('ASK', originalBook.Ask, CONFIG.LEVELS.ASK)
    };
}

function calculateTick(prices, side) {
    var maxLevel = CONFIG.LEVELS[side];
    var binSize = (side === 'BID') ? 1 : 0.005;
    var decimalPlaces = ('' + binSize).split('.')[1] ? ('' + binSize).split('.')[1].length : 0;
    var bins = {};
    var prevalentDiff = 0;
    var maxCount = 0;

    for (var i = 0; i < maxLevel; i++) {
        var diff = (side === 'BID') ? prices[i] - prices[i + 1] : prices[i + 1] - prices[i];
        if (diff > 0) {
            var bin = Math.floor(diff / binSize) * binSize;
            bin = parseFloat(bin.toFixed(decimalPlaces));
            bins[bin] = (bins[bin] || 0) + 1;
            if (bins[bin] > maxCount) {
                maxCount = bins[bin];
                prevalentDiff = bin;
            }
        }
    }

    Log("Tick calcolato (" + side + "): " + prevalentDiff);
    return prevalentDiff;
}

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");
    }
    logParts.push("Tick: " + calculateTick(sideData.Prices, side) + "\n");
}

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

var BookUtils = {
getData: function(book, side, level, type) {
    return book && book[side] && book[side][type + 's'] ? book[side][type + 's'][level] : null;
},
    hasBookStateChanged: function(newState) {
        if (!cachedBookState) return true;
        if (cachedBookState.book !== newState.book) return true;
        return ['bidPrice', 'bidQuantity', 'askPrice', 'askQuantity'].some(function(prop) {
            return cachedBookState[prop] !== newState[prop];
        });
    },
    getBookState: function(book) {
        var newState = {
            book: book,
            bidPrice: this.getData(book, 'BID', CONFIG.LEVELS.BID, 'Price'),
            bidQuantity: this.getData(book, 'BID', CONFIG.LEVELS.BID, 'Quantity'),
            askPrice: this.getData(book, 'ASK', CONFIG.LEVELS.ASK, 'Price'),
            askQuantity: this.getData(book, 'ASK', CONFIG.LEVELS.ASK, 'Quantity')
        };
        if (this.hasBookStateChanged(newState)) {
            cachedBookState = newState;
            lastBidPrice = newState.bidPrice;
            lastBidQuantity = newState.bidQuantity;
            lastAskPrice = newState.askPrice;
            lastAskQuantity = newState.askQuantity;
        }
        return cachedBookState;
    }
};

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;
        if (currentOrder) {
            if (currentOrder.Price === price) return currentOrder;
            return this.updateOrderContext(OrderManager.Modify(currentOrder.OrderCode, price), side, price);
        }
        return 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 = typeof includeFormattedState !== 'undefined' ? includeFormattedState : true;
        var template = this.messages[type];
        if (!template) return;
        var message = separator + this.formatMessage(template, data || {});
        if (includeFormattedState && (type === 'Initialization Complete' || type === 'LevelChange')) {
            message += this.formatState(BookUtils.getBookState(UserContext.book));
        }
        Log(message);
    },
    
    priceDirection: function(targetPrice, oldPrice) {
        return (targetPrice > oldPrice) ? 1 : ((targetPrice < oldPrice) ? -1 : 0);
    }
};

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

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

    var side = CONFIG.ORDER_SIDE;  // Prendiamo il lato configurato (BID o ASK)
    var price = BookUtils.getData(originalBook, side, sideLevels[side], 'Price');  // Prezzo target
    var initialOrder = OrderUtils.execOrder(side, stock, price, CONFIG.SIZE);  // Eseguiamo l'ordine

    OrderUtils.updateOrderContext(initialOrder, side, price);

    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 side = CONFIG.ORDER_SIDE;
    var originalBook = Book(ps);
    var mappedBook = mapBookData(originalBook);
    UserContext.book = mappedBook;

    priceUpdate(side, mappedBook);
    status.secondCount = 0;
}

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

    if (targetPrice === oldPrice) return;

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

    pricesSide.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;
}

function handleEvent(context, eventType) {
    switch(eventType) {
        case TSEventType.Price:
            var currentPrice = Val(ps, "LAST");
            if (context.lastPrice !== currentPrice) {
                var currentTime = Now().ToString("HH:mm:ss.ff");
                Helper.log('PriceChange', {
                    previousPrice: context.lastPrice,
                    currentPrice: currentPrice,
                    currentTime: currentTime
                });
                context.lastPrice = currentPrice;
            }
            break;
        case TSEventType.Time:
            context.status.secondCount++;
            manageCycle();
            break;
    }
}

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();