There's now a variable for you too select when submitting to the 100% category. You have to put what version of the game you're playing. It's faster to do 100% on the May 10th 2017 patch instead of the current version of Outlast 2.

The autosplitter works on all patches, and if you don't know how to legally get an older version there's a guide teaching you how to downpatch.