Question Gigabyte RX 5700 XT underperforming

May 5, 2020
I just built my new pc a few days ago and ran into some slight problems which I fixed. Now my problem seems to be my GPU. I just checked benchmarks using userbenchmarks software my gpu % was 102% performing below expectations. I mostly play fortnite on competitive settings, and some overwatch but mostly fortnite. I'm getting around 150-200 fps in game and frames get worse when I play more than 2-3 games. I get stutters/fps really low sometimes mostly around 100-150. I had a msi rx580 before with the same fps as the rx 5700 xt with updated drivers. I was expecting more fps and everything to run smoother from the rx 5700 xt like in the youtube videos. Not sure what to do from here. Anything I could do to fix this?

My pc specs with benchmarks
AMD ryzen 7 3700x - 91%
Gigabyte RX 5700 XT - 102%
Samsung 970 evo plus 250gb ssd - 280%
1TB hard drive - 116%
TEAMGROUP T-force 2x8gb 3200mhz C16 - 70%
Cosair rmx series rm850x
MSI Optix MAg241c amd freesync monitor