Hello, i already opened a thread on the EU forums and a lot of other people with high end rigs had the same problem. I did litteraly everything anyone has ever posted in the technical support forum regarding this issue.
eu.battleDOTnet/forums/en/overwatch/topic/17618201804?page=1#post-19
Things i did since i posted that thread and as it grew:
Disable HPET
Did every available benchmark on this planet
Checked temps again when laggs occure, fine
Updated my BIOS
This game is the only thing i play when i get back from work and it is so frustrating to not be able to perform as it is pretty hard to deal with laggs when playing tracer and litteraly LIVING in those big fights