Force Photolab 6 to use dedicated GPU before starting the program?

I am using a laptop with an integrated slower GPU and a dedicated GPU. For better battery runtime I disable the dGPU often. When I open Photolab in this state it does NOT use the iGPU of the processor automatically. I have to switch between Automatic and the iGPU manually in the settings menu. After that I need to restart Photolab. When I turn on the dGPU I also need to change which GPU is used. (iGPU vs dGPU)

Is there a better/faster way do this? Can I start Photolab maybe with a parameter? Or change an ini file myself? This way I could write a script which changes the parameter before I actually start the software.

Thanks for your help.