Had this back in the day and never thought that much of it on the CPC. BBC version is the one that changed my opinion of the game. It's alright on the CPC but just lacks the fluidity of the Beeb.
I like both.
It appears the cpc version is running at ~13fps. The frame rate varies, best is around 18fps, normal play it slows a bit to around 11fps.
Didn't find out this game until much later than the CPC's lifetime, and was very pleasantly surprised... Really lovely title, thanks for putting all these versions together!
A small suggestion for your vids - would it be possible to have a system indicator always on screen? Sometimes I forward past systems I'm not interested in, especially in longer videos, and it'd help locate the 'good' parts :D