As somebody who doesn't always have alot of free time to grind events and to 100/100 games my cards (Cheers to my 2 young daughters), I would love a for a way to speed my games up.
One way I think this could happen would be an option to turn off battle animations. Even with pressing to speed them up, it's very repetitive.
This could also be something that would make the experience smoother for those using older devices.
I've played over 80,000 games on Supercard, and I don't really need to see my 5,000th Rock Bottom.
It would be great to get some developer feedback on this.