5 sets of 5 reps across isn't optimal for either maximal strength or hypertrophy. It is probably one of the best set/rep schemes for achieving both concurrently, but your focus is split between two goals. Your progression is limited by the volume and fatigue you accumulate in sets 1-4. There are several ways you can approach a workaround to where you are reaching higher intensity. Add weight until you can no longer complete 5x5, then move on to 4 sets of 5 until you stall and so on until you are ramping up to just one top set of 5. At this point, you can either start over at 5x5 with a 5-10lb increase and repeat the process or move on to 3x3. I would run the 3x3 the same way, except only run it for three weeks, regardless of wether you get all 3 sets of 3 reps in week one. Week1-3x3/Week2-2x3, week3-1x3. At this point you are peaking and learning to display strength, rather than building strength, so I wouldn't spend too much time above 85% of 1rm for your goals.