Getting major FPS slowdowns during fights (0.8.2, Windows 10)

Noticing this mostly with my cabalist build, but I am getting a lot of slowdown during fights. Starts out fine, and then starts to go at about 15 FPS. It’s especially noticeable when I cast Elemental Tome so it might be related to the creation of ethereal gems?

I can confirm this is still going on as far as 0.8.5 goes, just updated, and each cast of elemental tome seems to slow things down by about half.

I just released patch 0.8.6 which should improve this quite a lot for you - please let me know if you’re still having this issue after the patch. Thanks!

Much improved! Thank you for your hard work and this amazing game!