Ryzen 5 2400g Overclock problems

[lkosedy24]

Okay so i was screwing around with overclocking and currently Using the Ryzen master program I overclocked my Cpu to 3.8GHz and changed the Cpu Voltage to 1.4V But whenever I touch Apu GFX clock settings my Computer freezes I cant move it past the 400MHz and I heard it was okay to change it to 1500MHz with 1.2V I ran stress test with aida64 for around 10 min and no crashes. When Im playing games I am getting very low Fps then what im seeing people getting and I am really lost and I do not know what I did wrong.

 

[RememberThe5th]

FPS depends from 2 things, RAM size and RAM speed.
Whats your RAM?

 

[lkosedy24]

Ballistix Sport LT 8GB Kit (4GBx2) DDR4 2666 MT/s (PC4-21300) SR x8 DIMM 288-Pin - BLS2K4G4D26BFSC (White)

Exact name just copy and pasted from amzon