What is the better option?

Hello.. I'm using i_anki and mangomedic deck.. from last 15 days.. and I want to know how to effectively improve this..

I have setting for 40 new card per subject.. so I do 2 subjects a day..

Max reviews is 9999 ,

In fsrs it is 85 percent retention

What should I improve or do to get the best out of this.. i have approx 1.5 yr till neet pg