Same on 1.0.4. It was good before. Howeverbefore GeForce Experience did not allow to optimize Bannerlord. Today, it is optimized and I have this problem. This is the only change I found. Maybe it is something else.
I tried multiple ways to switch Bannerlord GPU from the integrated to GTX1060. But when I did change it manually in Nvidea Control Panel, the launcher did run on GTX1060, but the Bannerlord itself switched back to integrated gpu.
Version: e1.0.4
Computer Specs:
OS:
Microsoft Windows 10 Home
Version 10.0.18362 Build 18362
GPU: Nvidia GeForce GTX 1060
Processor Intel(R) Core(TM) i7-7700HQ CPU @ 2.80GHz, 2808 Mhz, 4 Core(s),
Logical processors: 8
RAM: 16 GB