FPS DROP WHEN FLYING JETS OR CHOPPERS

[ZAPERDASH 1]

Hello! need help please, i cant understand the problem, players on my server report me that after flying jets or choppers for 10-15 minutes client fps is going down to 15-20 after reconnect its ok 60+ how to fix this problem server side? it`s not client side problem, it`s something with server configuration i`m sure

[ZAPERDASH 1]

i dont even know where to dig for this problem

Edited February 24 by ZAPERDASH