Original sentence: Also, some users reported that the game had many  bugs.Another common criticism of Sim City 4 is that the pathfinding of the citizens is subpar.For the original release, some users complained that the system requirements were prohibitively high, and that the game ran slowly on relatively powerful computers.Maxis and Electronic Arts have released patches that improve or fix issues discovered in the original versions of SC4 and Rush Hour, including performance improvements for larger cities, and the so-called "stage 8" problem, which made it very difficult to get higher-density buildings such as skyscrapers.User communities have created "pathfinding mods" that modify the simulated citizens' ability to find the best route
Edited sentence: Another common problem is the poor quality of the sims' pathfinding skills, often taking a slow but direct route over a faster route that requires moving away from the workplace to use.Many assumed that the high system requirements are due to the intense graphics requirements of the game.Many of the first to purchase the game found an abundance of bugs; this was mainly due to the fact that the game had not been properly beta-tested.Maxis and Electronic Arts have released several patches that deal with many issues discovered in the original versions of SC4 and Rush Hour, including a reduction of the exceptionally high requirements when designing major metropolises, and the so-called "stage 8" problem, which made it nearly impossible to get higher-density buildings such as skyscrapers.Of note are the exceptionally high system requirements of this game, with users having 2GHz CPUs and 1.5GB of RAM reporting that their systems are too slow to effectively run the program.SimCity's graphics engine for this installment is quite refined, however, and its requirements are modest despite the heavy graphical nature of the game.The high requirements are actually due to the complexity of the simulation the game is running.User communities, however, have studied the transportation issues in great detail, and have created "pathfinding mods" that greatly improve the sims' ability to find the fastest route