Differences in max game speeds

[CuddlyLion]

Webman, a question:

Why are the max game speeds so different between games?

In Super Times Pay games, for example, the max speed is set at "hare" -- i.e., instantaneous. But in Quick Quads, Dream Card, and others the max speed is set at "tortoise" -- just a plodding step progression. Some keno games are like this, too, but it is definitely noticeable in the poker games. If it matters, I'm playing on a laptop via Spectrum ethernet using Windows 10 in a DuckDuckGo browser, although MS Edge yields the same results.