The more you look into these trendy TUIs the worse it gets -- it's like the developers took the accumulation of all the worst practices since the dawn of programming, and wrapped it all into one unwieldy, overweight, under-performant gelatinous blob that threatens to collapse under its own weight.
They’re not terminal UIs.
They’re attempts at pretending to have Windows (etc.) GUIs in a terminal.
Same stuff people made for DOS when Windows wasn’t common or good enough yet.
I’m not surprised they’re a disaster. Or built without understanding the abilities of the terminal they’re running on.