Lag / Slow-Mo / Stutter on 60hz servers

I have been talking about this in various threads, but decided to make new post for visibility and this NOT to be confused with network issues.

Problem is on EA servers, especially in conquest or escalation modes and in point where is lots of players. I get laggy and slow-mo like movement, just like with internet issues, but there is no problem with ping or connection etc. I get two yellow warning on upper left on screen (see attachment). 

I have tried every bit of advice or tip what i could find on this forum, and nothing works.  I also attach my specs on HWiNFO and one other screenshot showing fps etc. 

I also noticed last time i tried to mess with settings, that when i am in point that makes game laggy, i cannot get my cpu fps to raise over 70 even if i put gfx settings from high to low. it only makes ~5fps difference.

I also updated my CPU cooler from stock to Noctua NH-D15 G2 but temp throttling was not the issue. (rip additional 150€)

On portal servers (30hz) everything seems to be fine. and cpu fps is good and everything runs smooth. 

I have had this issue (not this badly) since beta, and still have. I have read multiple similar issues and after 2 months, this needs serious investigation and fix so we can start enjoying this game we paid.