@GubbyBlips. Everything slows down GG, it's just up to you to select what you need and what you don't. More importantly when you need something and when you don't.
Here's something I've been cooking up today for a laugh.
Objects with no script running. It has a reasonable 257+fps
This is with scripts running, collision on and text displaying. 150 fps, much slower.
Scripts running without text. 184 or so. Simply removing text saved 30+ fps.
Script without collision and text. Back to near the original fps.
So you can see many things can slow down a game engine. GG is not the fastest, so it slows quicker than most. But if your careful and use scripts wisely and sparingly, you can keep things running a little better. If your getting 10 fps with your map you need to optimise or reduce it. Preferably both
So for the above spaceship example as a one off, all things considered I wouldn't worry too much about speed. Helps keep things simple, but I'm sure you could use physics entirely for better performance if that is needed.
Edit - I'm actually surprised text made such a massive difference. Maybe the alternate text commands are faster, but never looked into them. Might be worth a test. For certain text heavy huds will slow things by the looks
SPECS: Ryzen 1700 CPU. Nvidia 970GTX. 16 Gig Memory. Win 10.