So my problem is when I reset, the world takes like 15 sec to load. I already have a macro, but can I speed up the loading screen?

starlight mod

But then I cant use Phosphor can I?

@Mika_MDF no, if you're using Starlight you can't use Phosphor at the same time. But use Starlight instead of Phosphor it's way better.

Ok thx

Starlight, Auto reset, fast reset, and a macro. The fastest you can make single instance. You can find the mods here: https://www.minecraftspeedrunning.com/public-resources/mods