Choosing the best Minecraft client for a low-end PC depends on whether you want a pre-packaged launcher or a customized mod-based setup. For the absolute best performance on older hardware, and Sodium-based mod packs are generally the top choices. 1. Lunar Client (Best Overall "Plug-and-Play")
I see a lot of posts asking how to get playable FPS on older laptops or "potato" PCs. I’ve tested the major clients on a low-spec machine, and here is the breakdown of what actually works: best minecraft client for low end pc