fagoatseThere's something fundamentally wrong with your setup. Your CPU and GPU are excellent and such dips should never occur. I'd start by taking a look into UEFI to check if there isn't some kind of CPU throttling turned on. Also check the frequency of your ram and make sure they run in dual channel. Afterwards, I'd take a look into the GPU drivers. Get nvidiainspector and modify the tf2 profile as follows:
Power management mode - prefer maximum performance
Multi-display/mixed-GPU acceleration - Single display performance mode
Thanks for the reply.
I've checked out CPU usage and it's not being throttled. Back when I first put this machine together I made sure there wasn't any weird stuff going on with throttling, and my friend who has the exact same issues with same GPU/CPU but different MB doesn't have any throttling either.
I've confirmed RAM is running in dual-channel, and my Nvidia drivers are up to date. I already set power management and multi-display acceleration to those values globally in the Nvidia control panel.
Mastercoms and I had done some testing yesterday and (probably) isolated the problem to have something to do with being around characters that are firing their weapons. When walking from spawn at the start of the game with my entire team there are no issues whatsoever until people start shooting at each other.
She recommended these commands and they seem to have made this only happen in the more intensive firefights: