Clutch plates and oil cause a lot of drag.
For a comparison, just try pushing your bike in neutral, then try pushing it in 1st gear with the clutch pulled in.
If your bike starts in gear I think you're lucky, but I wouldn't complain if it doesn't.
BTW, mine's an old 2004 and doesn't have electric start. I've heard a lot of people complaining about the electric start being weak. I can only assume this is because GasGas kept the starter motor and battery size down to a minimum to save weight.