So in my case, I try to learn fast by just saying the words and going on and to extend the idea of trust in God to this area also--that is to not look at whether I understand or not, but just to believe that what I am supposed to understand I will and not to do ריבוי השתדלות over much effort.
[THIS is not to negate the idea of review. It is rather one kind of learning normally called bekiut in Litvak yeshivas. But there is also "iyun" in depth learning which if I am without a learning partner usually means to of lots of review].
[It is true that to the Rambam, Physics was meant to be learned after finishing the Oral and Written Law. It is the way the Rambam understood מעשה בראשית and מעשה מרכבה. [The work of Creation and the work of the Divine Chariot which are in fact dealt with in the Gemara in חגיגה.] [The opinion of the Rambam can be seen also in the book חובות לבבות Obligations of the Heart שער הבחינה i think at the beginning of ch. 3]