Well that's just impossible. What I just noticed was that when I looked deeper on MUI components, their internals are bulky and almost always used a mixed of JS & CSS instead of just CSS. They even import an external library for their styling.

On low-end devices it's a bit too much (I'm talking about edge-case users with phones as cheap as $50). It was also quite a chore keeping up with their API changes every couple months.

I forced myself to cut down on components and just style my UI with CSS. It's more consistent, more predictable, and less strain on the end-user's device. It's a trade-off across looking good, better end-user performance, good user experience, good developer experience, and having more time for the product and users instead of maintaining and updating dependencies.