This is a load remover designed by alexjlockwood. It uses OBS and Livesplit as well as a few plugins in order to capture your game, scan it for when it is loading, and pauses accordingly. While it isn't an official timer, it is good in order to have splits and to compare times and sections accurately. The link leads to all the programs you need as well as a video and written tutorial by the author. The vas file for the remake is attached as a direct download on this site and the github link provides the instructions.

https://github.com/blegas78/autoSplitters