我的项目比较大，里面包含100多种皮肤，约束更是不计其数，文件大小再30mb左右，用4.2打开的时候没有任何问题，但是用测试版的4.3打开后卡的无法进行任何操作？请问是什么问题？有没有解决方案
"My project is quite large, containing over 100 types of skins and countless constraints. The file size is about 30MB. When I open it with version 4.2, there is no problem at all, but when I open it with the beta version 4.3, it becomes so laggy that I can't perform any operations. What is the problem? Is there any solution?"
