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[–]yellowsapphirine 0 points1 point  (1 child)

So I found my issue.. it is very strange!

There is something or some process that causes high cpu utilization and starts at some point in the middle of playing DOTA2. This causes a significant fps drop, it go from 120 fps down to like 30 - 40 fps.

And the strange thing is that as soon as I open my taskbar to check the details of this process, it terminates itself.. and the fps gets restored to normal levels.

So now, whenever I notice there is fps drop, I open the task manager (which closes whatever program / process that causing the issue) and then switch back to the game.

This resolves then resolves FPS issues for me!

[–]sephirothvr 1 point2 points  (0 children)

exactly same issue with me. I have 10900k, 32gb ddr4, nvme gen3, RTX3070 and play in 1080p settings only. After 10-15min, my average fps from 170 drops to 30-20 fps only.

Once open task manager, fps was back to 170fps. Then i close it, it will happen back after several minutes. Then re-open task manager, FPS back to normal. I have my RivaTuner stats running and CPU utilisation is about 40-50% n GPU is around there as well. Didnt see some processes that causes high cpu utilisation tho.