FPS issues

[Lukilu050]

Hello,
I love this game and been playing it for a long time (before it was released on steam), but nowadays i cant play it anymore because the fps are just so bad in bigger battles (which are unavoidable because the AI just doomstacks). Changing settings (Resolution, Graphics quality) doesnt help. It was fine before the wave graphics update i think.
I feel like something is wrong because i should be able to run this game with my PC (rtx 2060, r7 5700G) and it used to work before.
Best Regards,
-Lukas