You can try adding more pre-load to see if that helps. You’ll need an 8mm allen wrench and a 3mm allen wrench if you want to do both ends of the scooter. Start with the front. Use the 8mm Allen to add one to two turns (tighter) to the front spring (the allen bolt that is at the top of the spring). Go for a quick ride and see how that feels. If that helps then try the back. To do the back, you need to remove the 6 allen bolts holding on the rear kick plate with a 3mm allen wrench. Then apply the same spring adjustment.
Normally, I’d just about guarantee that this will work. The reason the Ghost is a little different is that adding pre-load also shortens the travel of the suspension and makes the scooter lower, rather than making it higher like it usually would when you add pre-load. But, having more initial pre-load on the spring might keep you from building up downward momentum and bottoming out.