hi,
SPEAK ENGLISH HERE - its a user-helping-user-forum = all people want to understand your problem or want to know the solution
1. update Win10 to 20H2
2. disable Win10 auto-driver-install
3. run DDU in safe-mode to clean AMD driver
4. install 20.12.1
5. test again
PC: R7 2700X @PBO + RX 580 4G (1500MHz/2000MHz CL16) + 32G DDR4-3200CL14 + 144hz 1ms FS P + 75hz 1ms FS
Laptop: R5 2500U @30W + RX 560X (1400MHz/1500MHz) + 16G DDR4-2400CL16 + 120Hz 3ms FS