Is there an autosplitter available for this game or one in development? I’m having a hard time splitting accurately and would like a more reliable way of knowing the time differences in my runs.

Are you on console or Emulator? if emulator, there's one available under resources - I don't know of one for console.

If you split RIGHT when the screen turns black at the end of a level, you should be accurate to at least +/- a tenth of a second, enough to determine what framerule you're on

I don't know how you split, but a foot petal is an easy way that doesn't require you to take your hands off of the controller. I literally use a second keyboard placed on the ground, and touch the spacebar (biggest key) with my big toe--- but other runners use an actual foot petal

I should be fine now that Sonic fixed the Livesplit plugin. I meant a timer that would split without me having to input anything at all

On second thought, how does one use the Framerule plugin? I can't figure out how to implement it.

Just install it and enable the plugin on livesplit, it does the rest

How to install the plugin?

look on the livesplit website, it tells how there

I still can't find it ? But is it really the .dll or another file that was needed.(i think it's only the .dll file only)