Not sure if it applies to what you're experiencing, but I have observed that Flashback attempts to adapt its timing to the speed of the system at startup. In other words, if cycles are low when you start the game, the game remains sluggish even if you subsequently increase cycles with Ctrl-F12 while the game is running. However, if cycles are "sufficiently high" at startup, the game speed seems fine; and I perceive no real difference between 7000 and 10000 cycle startup speeds.

Yeah i have that too. The only thing that makes a difference is reducing cycles to 1 and then go up again.

I think I'm seeing the behavior you describe, going by the intro music. There's two speeds: slower and faster, with faster kicking in at a certain amount of cycles (haven't looked for the exact the hinge-point). The difference is there if you're looking for it, but I'm not sure I would have noticed if you hadn't mentioned it.

Since you appear to have a good sense for what is correct speed, I'm wondering if you would be willing to try playing Flashback with a modified build of DOSBox 0.74 to see if you perceive the same improvement with it that I do?

The reason why i notice it is because i used to play the Amiga version alot. And sure, i'm game for beta testing. 😁

OK, this is only an executable, it needs the DLL files from the official 0.74 release. I don't think it makes the speed "perfect", but what I'm seeing is that the speed remains more-or-less constant with lower or higher cycles.

Much better!
I'd say this is perfect actually. It still doesn't scale on-the-fly though. *shrug*

EDIT: Oh and thanks. 😁

Yep, timing does indeed seem to be established at game startup.

The good news is that the DOSBox devs are aware of the issue, so maybe there will be a solution in future releases. I don't know if they're aware that the screen resize delay is having an impact on Flashback in particular, though.

Sunnyhat wrote:

Problem:
So i've been trying to run my old Flashback in DosBox 0.74...

...At (and over) "cycles=fixed 6461" the game runs too fast.

Hi Sunnyhat, I just did what you did

"cycles=fixed 6461"

and it just got perfect speed!

as the video on youtube shows as right speed!

Thank you!!!!