Paper is distributed as a .jar file, not a .rar or "patch part 1." If you found a link for a .rar file elsewhere, be cautious as it may not be official or safe. Why use Paper?
It is designed to handle high player counts and complex server networks with minimal lag. Download patch part1 rar
It includes numerous bug fixes and optimizations over vanilla Minecraft. Paper | PaperMC Paper is distributed as a