[b]I created an extreme performance beta branch [/b]for those with weaker PC's. In this branch is the window mode fix. This branch has many graphical features removed and may look worse, but will render at a much higher FPS. If you wish to use it, go to properties and opt into the beta. I have triggered a build for the main branch, however, it will only contain a minor improvement in performance to retain the overall appearance. In addition to the window fix. It should show up tomorrow as an update. I am eternally grateful for your participation. Thank you.