my computer is as bad as it gets, but it can hold up in some games, and its not to do with thermal throttling because the temps are always at 40 - 50 degrees when i open games. (thats my idle because i dont have a heatsink, i only have a fan what does f*ck all to the cpu). anyways, i cant make the cpu sit at a set frequency because my motherboard wont allow it. is there any way at all i can make cpu sit at its max frequency always, because it seems to do that when its idle but as soon as i open a game it instantly drops to 0.8 - 1.8ghz. its on high performance mode and i dont know what else i can do, is there a program that can solve this? any help would be amazing, thanks in advance 
specs:
acer aspire 315-22
cpu: amd a9-9420e
gpu: radeon r5
memory: 8gb 933mhz
ssd: 256 m.2

specs:
acer aspire 315-22
cpu: amd a9-9420e
gpu: radeon r5
memory: 8gb 933mhz
ssd: 256 m.2