"you can't use amped speed boost strategies with quick play / low level / PUGs"
wrong wrong wrong
Seriously, other Lucios, just try it. I used to think the same thing, down here in the scrub tier dregs, and I was wrong. One game I just decided that I was going to amp speed boost in every combat (then fade back to heals after amping) and it was amazing. It's now my standard Lucio play,
People aren't as awful as you think: they will adapt.They will get used to the fact that every few seconds they are going to start moving faster. They will realize moving faster gives them a huge advantage in combat. Your teams will win more, because the other Lucio probably won't be doing this.
"but I lose amped healing"
true. but the number of situations where this will make a difference is smaller than you think. if everyone is in dire straits, then sure, amp healing, but really you have limited chances of saving people with it. i have not felt that my healing totals or team survivability have suffered since changing my amp strategy.