[R] Help with TMLR (Transactions in Machine Learning Research) Journal submission

I recently submitted to TMLR (about 10 days ago now) and I got the first review as well (almost 2 days ago) when should I submit the revised version of the paper ? Before the second review comes in or after all the reviews come in ? This is my first paper which I’m writing on my own which is why I’m asking these questions.

Appreciate you taking the time to answer, thanks!