The decrease in frame rate occurs periodically, rhythmically. 20-40 seconds, the number of frames is normal, then a decline of 5-8 seconds, then it becomes normal again. In different games in different ways, but in all. Here are the numbers for the games:
Final Fantasy 13 - 30 to 22 fps
Generation Zero - 60 to 10 fps
Star Wars Jedi Fallen Order - 40 to 19
Sonic Generation - 64 to 45
When watching a video, the frame rate is stable, unchanged. Please tell me what could be the matter? Here are the settings for my computer:
Windows 10 x64
Adrenalin 19.30.02
Asrock Pro 3 R2.0
AMD FX 8350
2x8 GB 1866MHz
MSI Radeon RX 570 Armor 8GB
All equipment works without overclocking.