Do you remember waking often during the night for some reason or other?
Did the leaks disturb your sleep or did you sleep right through them? I have slept through worse myself.
I don't see any need to increase the minimum at this point. The stuff we could fix with more minimum really isn't enough to worry about.
Now if the variations in pressure disturb your sleep...maybe tightening the range to lessen the variations could be beneficial.
You are having some big leaks even at lower pressures so the higher pressures aren't like the sole cause of the leaks.
Could be mask movement or mouth breathing going on there. I don't remember if you said which mask you were using.
When you have time please update your equipment profile so we know at a glance what you are using.
The centrals seem to mainly cluster a bit...if you know you were awake a lot then we might explain away the bulk of the centrals as awake/semi awakening breathing irregularities and not worry about them.
If you are sleeping soundly then maybe we look at them a little closer.
If you are sleeping soundly...I think I would turn EPR off and see if the centrals are still numerous.
There is a very small subset of cpap users who will have centrals pop up because of the way EPR works.
Yours doesn't look like that normally looks but if you aren't waking often...wouldn't hurt to turn EPR off just to see if it helps the number of centrals reduce or not.
If you are having trouble falling asleep or getting back to sleep in the middle of the night then awake/semi awake breathing irregularities could be to blame for the centrals.
I would try to work on the leaks...whatever they are caused from.
While I will let less than perfect slide....yours is pushing it a bit.
Especially when you spend much time above 30 L/min. We don't know if not much happened to result in the low obstructive stuff or the machine missed it.