Periodic frame time spike in multiplayer

[streakeagle]

Whenever I spawn in an aircraft, I get a periodic spike in frame time every 6 seconds with a corresponding drop in frame rate. I have tried every recommendation I could find, but cannot reduce or eliminate the problem. When I am a spectator, there is no problem. As soon as I spawn into a cockpit, the problem starts. I do not have this problem in single player. 

[Mr_sukebe]

You’ve posted in the bugs section, with barely any details of your system, settings or what you’ve tried and have not attached a track file.

Can I please suggest having a go at the above