that is correct, but the solution makes use of your solution to the plus level, which has a solution more efficient than repeatedly applying succ.
If you can’t find this solution, I can update the game to be even more lenient with the time limit, do give me a while though as I am still busy with school. I am also not sure if updating the game will overwrite your save progress on the web (it does not on the desktop builds as there are save files).