I agree with @Calvin – the E-TWOW/UScooters GT 2020 and similar models (GT SE, Booster V, Booster Sport) are among the best for portability that also have suspension.
The various models have more or less battery / motor power with proportional cost. The GT 2020 and GT 2020 SE are the primo models that are the fastest and also have a handbrake included (in addition to the electronic and foot brake).
Weight is around 25-30 lbs and they fold super compactly.
I can’t think of any other model that will be as light, but also includes suspension. The E-TWOW/UScooters are also legendarily durable.