Client lag on Map 2

[Stacker]

I have EXTREME lag on map 2. I get 0-5 FPS most of the time, but on Map 1 I have an average of about 200 FPS and on Map 3 100 FPS. I have my settings on Fast and Smooth lighting off, render distance: normal but I just cannot play at all on Map 2...

 

[Doomd12]

Install optifine or upgrade your computer