Okay, so I was playing with settings in the digital clock, and decided to set an alarm for work on weekdays, church on Sundays, and a Saturday alarm for archery tournaments.
Immediately I noticed my performance was terrible! I went and turned off all but the work ones, and performance was no better. I then went and turned off that one too. Immediately the phone performance improved drastically!
So if you are having poor performance, and you have alarms set on your phone, then try turning them off. You can always turn them back on the night before you need it.