thank u for hint
the reason i want to disable some cvars ,because i think some useless in deathmatch mode

, i just want to try if it will be better,thus , i want to know more about these cvars
in some maps ,which have many floors and open large area ,such as cs_1338_assault , many bots see each others causes fps drops to 3x-4x , in other maps fps always =60 ,it works fine
