I am using the translator to express myself better, but this map can help improve the performance of your server and your fps by up to 40%, Police Station on a normal computer makes 60 fps, on this custom map it does 145 fps .
Maybe it's a simple solution to the problem.
POLICE STATION '|' MAKE 145 FPS IN NORMAL PC
POLICE STATION OFICCIAL - ORIGINAL: 60 FPS
Make a test, please.