100% should be renamed to Any%, and please set the rules to:

Timer starts when you click new game, or if you have a save file, when you click to delete your old save. Timer ends when you click interact with the final "god".

Make all the Tablet run's rules be this:

Get X number of tablets inserted into the stones. Timer starts when you you click new game, or if you have a save file, when you click to delete your old save. Timer ends when you gain control of the character after inserting the last tablet.

I agree with the 100% should be Any%. But it's the same difference as you require a 100% collection of the tablets to enter there anyways. I agree with these rules ;)

Done :)