ui is really slow, even on windows

i tried it on a pretty hefty laptop from a few years back running windows and UI elements still take upwards of 5 seconds to load
specs: intel core i7-6700hq
i used igpu since it shouldn't have too much of an affect on menuing, and if menuing doesn't work without a dedicated gpu something is wrong, even if it's for hardware from 7-8 years ago (which it isn't yet in my case, it's barely 6)
for reference: i needed a crash just to get anywhere close to the menuing speed of this in blender on my main computer (5200u, 8gb ram, iGPU only)

No files, tests, or entry points are identified. Start by reproducing the slow UI loading on Windows with integrated graphics and profiling the menuing path; done means UI elements load without multi-second delays.

Written by the indexing model from the issue text.