Could you try manually switching the graphics_adapter = 0 setting to 1 in the engine_config.txt file located under the configs file of the games documents folder?
it started using the wrong gpu, in the in game menu also was displayerd the wrong gpu, swapped it back to the right one via the ing game menu, then i checked the engine_config.txt and it was back to 0
(the wrong being the Intel(R) HD Graphics 530 and the right being the NVIDIA GeForce GTX 1050 Ti)
one thing that i noticed is that my gpu usage hovers between 0% and 6% while both in game and out. in game i do have decent fps, but with graphic setting at the minimum possible and with my cpu usage between 90% and 100% getting frequent lag spikes. also unit models take a long time to load, especially in tourneaments, where i often get hit by an invisible enemy as his model have yet to be loaded.