Help for optimized an Intel UHD iGPU

Heya, as I am away for uni I have with me only a laptop that I use for it. Recently I’ve returned to WoW as I realized that I can acutally run it on this machine. I am looking for tips and tricks from fellow Intel UHD or other iGPU users as to how to squeeze in the most performance possible.

If it help my specs are:
CPU: Intel Core i7 10510U
RAM: 16GB DDR4
iGPU: Intel UHD Graphics (not sure if 620/630)
Storage: 1TB of SSD

I am looking for any software, optimization options, ingame settings and out of game PC settings that could help me get more FPS. Current main issue is that there is a large freeze lasting around 15ish seconds every half an hour or so.

Appriciate any help with this!