How long did you give it? Id give it 5mins or more once its done you don’t have to wait for it anymore.

I'm also facing a similar issue and noticed bannerlord using 90% of my cpu in this case. I get that it takes quite a bit of resources to do so but never to the extent that overloads the cpu like so, so I don't think this is supposed to happen? Waiting for a solution as well.

i had 2000 once but it was done in about a minute

i tried reinstalling the mod and then let it sit on the shader compilation loading screen for about 10 mins and it was finally playable. Maybe try that if it's still taking too long to load for you. but in the end i also suspect that hardware may also play a role in how fast the shaders are loaded, hope this helps anyone with a similar problem. good luck

In my case (got 2519 for Arena fight) it's loading for 15-20 min. But my PC is slow, and even ~400 shaders took 15 min or so, when it finally passed through. I guess just a waiting game then.

Yep, took me a bit less than an hour!