I have a Lenovo E585 with AMD RYZEN 5 2500U & RADEON VEGA 8, and the default dedicated VRAM is 256MB. I recorded a log of memory usage in game while lagging, and it showed that only about 5GB of RAM were being used.
I used stress-test softwares to see if that was due to the game not requiring more RAM and here is what I got :
As you can see, my CPU and GPU are running at 100%, and I still have about 3GB of RAM unused. I don't know if this is normal, but it doesn't seem to me.
I wanted to increase the dedicated VRAM, but I don't have that option in the BIOS, and I don't have it either in AMD RADEON software (no 'Tuning' tab).
Can someone point me in the right direction to solve my problem ? Should I focus on dedicated VRAM ? Adding RAM (I don't think so since I already have unused RAM) ? Something else ?