How to make the most of your time when studying<br>Develop a schedule that will allow you adequate time to study. Having a schedule makes you see that you have certain things to do and will give you an allocated time that you should be focusing only on your studying. To make the most of time when studying, select the times of day your brain is at its peak performance.
Your brain performs worse during certain times of day.
The context implies there are times of day where your brain is at its peak performance.  This means that there must be times of day where your brain is not at its peak performance, and therefore is performing worse.
( z1 perform :ARG0 ( z2 brain :part-of ( z3 you ) ) :time ( z4 time :mod ( z5 certain ) :part-of ( z6 day ) ) :ARG1-of ( z7 have-degree :ARG2 ( z8 bad :ARG1 z1 ) :ARG3 ( z9 more ) ) )