TL;DR: Some players were having performance issues due to shader stutter and vsync. These issues have been greatly improved upon and the settings menu has been expanded to help further.
It's been great to see players enjoying GULLET so much. Feedback on the game has been very positive. Unfortunately, a few players have reported suffering from stuttering beyond the expected first time loading and few shader compilations at run-time.
I did some investigating and determined that some of these issues were linked to certain monitors not playing nice with GULLET's Vsync. To address this, I changed the Vsync from a standard implementation to an adaptive one, such that the game will act as if Vsync is off if the framerate isn't keeping up with the monitor's refresh rate. Additionally I added a toggle in the options menu so those players affected can just shut if off and play with fps caps to see if that works better for them.
Shader stutter should also be greatly reduced. Now it should be all gone for players on their first launch of the game by the end of the 2nd elevator ride. Shader compilation is stored in a cache so players who had issues with this on their first launch of the game won't in future (unless they've updated their graphics drivers in the meantime).
Change List
If you are one of the few who had these issues, hop back in and see how it performs now. If it still doesn't perform well, try updating your graphics drivers to the latest and try again.
If you have any other issues/ encounter any bugs, it'd be very helpful to email me at [email protected] and follow this bug reporting guide: https://steamcommunity.com/app/3100790/discussions/0/4694531323073078523/