[MegaBlues]

I'll see which option it's using and try changing it, and hiding the overlay hasn't had any noticable effect for me. Though I'll take a second look.

[MegaBlues]

Checked, and I don't have any integrated graphics according to my driver list and NVIDIA settings. I did change an option to prefer performance over power though, and didn't see any noticeable change. I also made a new character to compare the performance with and without the utility bar, and they were more similar than I remembered, with the same sort of oscillation of the screen.

[Autumn]

Hiding the HUD with DEL and the hide HUD preference doesn't increase performance, nor does it get rid of the utility bar either.

[Neus]

I added a toggle on the item itself.