Interesting, thought 300 MPs landing gear were all electric drive. What year do you have? Since the majority of time I am moving up and down inches not feet, time it takes has not been an issue. Not speedy by any means, moving it a feet or two would be an issue. Would not expect a difference in speed between Generator or Shore Power since it is 12 VDC.
Having watched a neighbor hank crane his landing gear up and down I am sure anything is faster than that
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2013 RAPTOR 300MP w/Rear Patio Deck NO Folding Side Ladder
2013 Silverado 3500HD LTZ CC LB 4X4 DRW
Duramax 6.6L Turbo Diesel; Allison Trans
Reese 20K; Carlisle Radial Trail RH/HD; TPMS (12 Tires)
Veteran
PSU (GO LIONS)