as my robot vac gets older the battery does not hold a charge like it used to. Currently the vac cleans as much as it can then goes back to recharge and then starts vacuuming again. Since it only charges to 60% before it starts back up, it doesnt have enough charge to finish. If you make the 60 percent user configurable in the app then it could easily finish.
If you would like to request that Wyze add this feature, that is handled thru a new topic post in the Wishlist. Go to the Wishlist, search the topics for one that matches your request. If you find one, vote for it at the top, like 
some posts, and add your reply post to support the request. If you do not find a match, submit a new topic for approval.
In your search, you may find that the Wishlist topic " Robot Vacuum - User-configurable max, min, return and resume cleaning battery percent levels " meets your request perameters.