So I have everything installed and working in regards to Source Unpack. The Vault Save works fine and all of the speedrun commands work as well, but my Livesplit is not working right. There are two main things that I'm having issues with.

The first is it not saving the start of the run at 53.01. Every time I reset the run, it goes back to the start of it being 0.00 instead of staying at 53.01.

The second is with starting a run. I have the speedrun_start and the Livesplit start as the same hotkey, and when I press it, they both activate, but Livesplit resets the time back to 0.00 almost as soon as the run starts and counts it as 2 runs.

Any help is appreciated and thanks for whoever helps.

You do not need to start livesplit manually, it will start, stop and split automatically.

Regarding the timer resetting to 0, I guess make sure that you're comparing to Game Time and not Real Time. Also I don't know if that's an issue, but you don't need to set the starting time to 53.01. Livesplit will do that automatically too.