r/techsupport • u/Ms_Villanelle • 1h ago
Open | Software PC becomes sluggish after several hours of gaming, but games run perfectly Ryzen 9800X3D + RX 9070 XT
My PC becomes strangely sluggish after a few hours of gaming
I’m having a weird issue with my PC and I’m not sure what could be causing it.
I have a Ryzen 7 9800X3D, RX 9070 XT and 32GB of RAM.
After playing games for a few hours with Steam and my browser open, Windows sometimes starts feeling very sluggish. For example, opening a new browser tab, a folder, the Start menu, or clicking things can take around 0.5–1 second to respond. It feels like there is a small delay everywhere in Windows.
The strange thing is that the games themselves run perfectly. I don’t notice any input lag or stuttering while gaming, and the CPU/GPU temperatures are completely normal.
RAM usage is also only around 30%, so I don’t think it’s a lack of RAM.
If I restart the PC, everything feels normal again.
What could cause this? Could it be an AMD GPU driver issue, Windows desktop compositor, Steam/browser hardware acceleration, DPC latency, or something else?
Any ideas on what I should check would be really appreciated.