I've run into this issue before and couldn't wrap my head around it. Some rigs just can't get a consistent 60 FPS for some reason, doesn't seem like it has anything to do with specs at all. It SEEMS to be a problem with Game Maker. I'll be switching to Game Maker 2 very soon, so that may fix things
Hi BogHog! I happen to ve the same problem : it runs a very stable 45fps, so there are no framerate drops (I'm not opening another thread since you already answered here^^)
I had the same experience with Wings of Bluestar (whereas there was no indicator of framerate, It was a very stable one, but the game seemed to run at 4/5th of its normal speed, which I could verify afterwards, when the first replays were out on YT).
The dev also thought it should be a problem with the program on which he developed the game, since my config should be able to run the game (I have a laptop Predator Helios 300, not the strongest but it should be able to hold the fort^^)
Could the issue be linked to outdated drivers, or stuff like that ?
It really does seem to be an issue with Game Maker and either certain Windows or computer drivers, WoB was made using the same version of Game Maker so the shared bug is unsurprising to me. I believe the problem has been fixed in Game Maker 2 which I'll be switching to soon, but I'm glad the alt sync method helped! I had forgotten about that thing