Hey guys i have finally decided to give a full run ago the other night which not going to lie was superslow although there was some PBs in places but they were few and far between.
One thing i did have trouble with though which i'm hoping there is a simple fix is getting the splits as i found i was so focused on the run i kept forgetting to press the button to do the timer meaning that it looked like i did one section super slow and another super quick when i finally realised and pressed it twice to catch up. I have been looking at the settings and is there a way to make it live split do that for me so i don't need to worry beyond starting the timer?
I have used the script download and selected scriptable autosplitter in layout however i still seem to have to press the button.

I'm running the steam version if that changes anything.

IGT script doesn't start and split for you. As for the actual autosplitter script, it only works for PC disc.
You honestly should take the PC disc version, as it is the best version for speedrunning this game anyway.