CINE: OS (Atari ST) - Incorrect intro speed

[laenion]

When testing the game I had the impression that the game's introduction sequence took way too long. And indeed: When playing the game on the Atari ST I discovered several inconsistencies.

Examples:

Code card introduction text (from cursor appearing to OK button):
Atari ST: ~ 14 seconds
ScummVM: ~ 29 seconds

Delphine logo (from first shapes appearing to logo faded out):
Atari ST: ~ 13 seconds
ScummVM: ~ 22 seconds

All in all ScummVM requires 2:34 minutes until the briefing, the real hardware requires 2:00 minutes - and that is even though on real hardware the loading times are way longer than on a modern PC, for example 10 seconds for the transition between the hangar / airfield scene in the original vs. 0 seconds in ScummVM.

The problem is that sometimes the speed is mostly correct, sometimes it takes twice as long as the original, and everything in between. I have uploaded a ScummVM recording of the introduction to ​http://digitalimagecorp.de/files/ScummVM_OperationStealthIntroSpeed.ogv, the correct speed can be seen in ​https://www.youtube.com/watch?v=tDmLJ2V697s (the video is matching the speed of my Atari ST except for loading times).

The ingame speed seems to be correct.