I am using the older Client. My specs are as such:
64GB of Vengeance DDR4 3600mhz ram.
Ryzen R9 5900x
Nvidia RTX 3080Ti
Asus Rog Crosshair 8 Dark hero
Samsung m.2 pro 980 1TB
Samsung m.2 pro 980 2TB (WotLK resides on this drive)
I also play this game on an Asus ROG Swift PG32UQ 32" 4k HDR 144hz monitor.

When I logged in this afternoon I saw I wasn't getting my normal 180+ FPS and that I was capped to 60 FPS. I do have the the "SET maxFPS "0"" set in the config file in the WTF folder. Also no vertical sync as I have G-Sync enabled for the monitor I am playing on. Also I forgot to mention I am playing Windowed mode but Maximized mode. Also my Side PC with 32GB of ram RTX3070 and R5 5600x gets 160+ FPS as is. No issues at all.

It feels like there is a settings on my client that is permanently flipped to to 60 FPS only.... Switching over to the HD client i get uncapped FPS. this is the older client acting up.

I have also deleted and started fresh multiple times with the config file in the WTF folder. I have added in the lines for "SET maxFPS "0"" and "SET gxWindow "1"" and "set gxMaximize "1"".

Any additional assistance will be appreciated.