WH3 3D UI is Trashing Campaign Map Performance – April 22, 2023 at 11:10AM

I’ve been seeing terrible late-game campaign map performance (10-20 FPS whenever I move the camera on turn 120) in WH3 (GTX 2070S). I tried lowering all my settings, but it didn’t help. Then I disabled the campaign map 3D UI (the floating settlement and army names–you can see the option by holding down spacebar) and, suddenly, everything ran at 60 FPS. Here’s what this looks like: https://imgur.com/a/2O6NYdT

Of course, you need the UI to play the game, so this isn’t a solution, but it’s weird that the UI has such a big impact on performance. This strongly suggests that bad performance is a bug in how the UI is rendered and not something more fundamental. Do other people have the same experience?