You have to compile shaders every time you travel to another place in the game map which takes 15 mins.
Every loading screen requires compiling shaders which again takes 15 mins.
There is no shortcut to this.
It’s a rehash of BL3 all over again. I remember how unoptimized that game was for 2019. HUB called it the worst optimised game of 2019 in his year end review.