can someone help locate what is causing horrible fps on low end games

ben2299

Reputable
Jan 7, 2015
51
0
4,630
I have a hp z400, with Intel xeon processor 4 core 8 thread 3.06 GHz
8 GB ddr3 ram
500 GB hdd
7970 powercolor edition
I play farming simulator, xplane ten, beamng, and a few other low end games, what is causing the fps issue, I used to have a ddr2 system that worked the same as this, I always have to turn the setting on my gfx card down to default or below, I should be able to utilize it at ultra, another thing that's weird is that, my processor stays at fifteen percent usage, ram at thirty to forty percent usage, and gfx card at forty to seventy percent usage, all the while getting twenty fps or below
Any tips would be appreciated
Person that solves this problem gets best answer, I want to be able to run xplane ten with clouds on at ultra with 40 fps... And farming simulator to work well too