よ, check out this guide!
Has lots of good info, including info about how to find your max leveling time sweet spot
As you continue leveling and adding items into your queue, your amount of daily reviews will start growing and it won’t feel as slow, I promise you that 
in the meantime, maybe check out a reverse WK site like KaniWani or KameSame to practice going from EN → JP, and/or start taking a crack at grammar if you haven’t already
Hang in there, don’t allow the durtvertedness of the first levels discourage you 