You gotta pick your battles, you know? The game still has content in it from 2001. The same company still makes the “regular” version of RuneScape alongside OldSchool, and while its graphics are more sophisticated, they’re also more inconsistent and have a tendency to look cheap—and regular RuneScape is filled to the brim with microtransactions. On desktop you can play OSRS using a third party client called RuneLite, which does have some graphics improvement plugins, most notably the 117HD plugin: