Unfortunately there isn't that much you can do in the game/studio apart from those settings and resolution itself. I use MSI Afterburner + RivaTuner Statistics Server to monitor the power draw (to indicate the load on the GPU) and other important metrics for info and based on that I use the panel and fiddle with the settings. You can't really break something, that's why you can save your preset before doing anything and just reload, if it doesn't load correctly then restart the game and it should work fine again then.
The Anti-Aliasing (or AA for short) tab, it's a strange one as it doesn't matter if I use any or none, my power draw barely changes on mine, it's usually between 1-2W difference but makes a big impact on the clarity and cleaning up the jaggies. I use CTAA as my main AA since it does the work the best in my experience, but your mileage may vary. Still, the biggest impact on the performance are really the reflections and even more so the shadows, especially on a close up to the face of the characters, the closer it is the more demanding it gets. I attached two images, one showing shadows off and on and the difference it has on my GPU.
This is also fairly common in other games, Clair Obscur Expedition 33 running on UE5 did a similar thing to my GPU, made the power draw go up by a lot just by looking at some characters's face up close, due to the drawing of shadows on hair and fur.
Since I'm on a 2560x1440p monitor, I really want to stay on that resolution while in the game or studio. I would say that unless you are fiddling with the main game for sexy time or in studio for animations, I would force that to drop the game's chara maker/studio to 30fps and it doesn't really impact your creative side, possibly at all.
That would be my take on this.
Quick edit because I'm dumb, forgot to attach the images I wanted to.