I tried with Vice, REU, Turbo @18mhz and Ozmoo.
Running Anchorhead was impossible, and even V5 games such as Vicious Cycles ran borderlinely unusable. I mean, playable over a lag of 8-10 seconds after inputting the command, but it gets tedious fast.
Bummer. Well, a whole lot remains interesting, thanks for the data points!
I have an Apple //e Platinum running at 16 megahertz. Might do V8 fine.
:D