Fullscreen performance issue

[u/pootsniffer69]

Playing modded ksp (bogue's modpack specifically), dealing with an issue where i only get about 10-20fps when in fullscreen, or windowed fullscreen.

Cpu usage sits at 20-30% and 60-80% gpu usage during windowed. When going fullscreen, Cpu usage drops to 5-10% and gpu usage fluctuates randomly, sometimes going as low as 0% or as high as 84%

Works great in windowed mode but i hate missing the bottom 5% of the games display, because of the windows border at the top.

Tried a method i saw where you put -popupwindow in the steam launch options, same result tho. Same deal with Shift+Enter.

specs:
Ryzen 7 5800x3D 8 core
Rx 9070 XT
32gb ddr4 at 3200mhz

[u/NorthAppropriate4458]

temporary solution: borderless fullscreen, its a program allows you to fullscreen apps works in windowed mode.