Game Freezes every 3 seconds for 1 sec

This thing is from launch of the game, i hoped that u would fix it but i think you don’t even know about this problem. Every 3 seconds my game freezes for like 1 sec. Fps goes from 75 to 20 and like that. Many players have this problem with decent PC. Try to fix this please.
@Roxx

not the perfect solution but im pretty sure it will work for now if u turn off all chats