I am on a window's computer so bugs might be different from here to mac
1. Unsure if this is a game issue or computer issue, I have ran the game fullscreen before and it worked fine
2. this is actually a bug, thank you for pointing it out.
3. The first person sections might lag older computers- I run things on a 5 y/o laptop and it does lag for me. (I hope to upgrade in the future to work more on optimising)
tysm for taking the time to inform me! :D