一直以来为这个问题困扰的人相信有不少。刚刚在其它论坛上看到有人在抱怨(-->LINK<--)

后面有人跟帖支援了：

"Id be willing to bet you have the exact problem I did. Its a buildup of abandoned cars around town, probably about 900 of them. Search Nraas Overwatch, download it, and set it to clear out the cars (you can do it immediately as well). Cleared mine up right away and Deletes 30-60 cars every night. Another EA perk."

就是说EA没有做好清理工作，每天在城镇缓存里留下一堆车……如此日积月累当然到一定天数就撑不住啦= = 所以才会有人反映说重新开裆就没问题，玩久后就开始顿卡

解决方法是用twallan的Overwatch，

链接：http://ts3.tscexchange.com/index.php?topic=4685.0

装好mod之后在游戏里选择"Cleanup Vehicles"，应该会改善很多:)

BTW那个Overwatch里面还有很多其它cleanup functions, 时不时可以用一下。