By the rule book, IDPA stages can only require 18 rounds maximum. So, you've already got 6 rounds more than you need.
What I learned over the years is that as sexy as super fast splits are, you're shaving hundredths of a second off your score by speeding them up. Learning to do smooth effective transitions will start shaving tenths of a second off. Learning how to effectively manage a stage and do the job with the minimum number of shots instead of "spray and pray" will shave whole seconds off.
I didn't learn any of that until I started shooting revolver. And, now that IDPA has gone to 1 second per point down: clean, deliberate shooting pays off even more.
The biggest obstacle for revolvers in keeping up with ESP or SSP is going to be reloads. You'll almost always have two for their one. And, with the relaxed rules on reloading, they won't be doing tac loads as often so they'll be doing their second fastest type of reload. So, only two ways to fight that: don't waste ammo, and get fast with the reloads. When you do shoot at a match big enough to actually go up against another wheel gunner (and not just get a participation award), if you're both good shooters, it's going to come down to who reloads quicker and who manages the stages better.
And, that's intrinsically our biggest advantage over bottom feeders, if we choose to capitalize on it. We can actually practice our complete manual of arms completely dryfire. We can run whole matches in our basement with everything but recoil. Load up a few hundred clearly marked dummy rounds and work that trigger and those reloads until you're blue in the face!
I, of course, preach that, but don't do it nearly enough. But, even so, after 2 months of almost no shooting after an injury, I ran a 5x5 classifier in ESP, SSP and REV. My best time on string 3 with the reload? REV, believe it or not. I had to shake the timer to make sure it wasn't broken, but there it is.
As others have pointed out in this thread: as a shooter, there is almost nothing more satisfying than being able to point out to someone that they just got beat by a wheelgun.