With 40mm tires I would think that the Topeak Mountain Morph would perform better. Road Morph is high pressure while Mountain Morph is high volume. I have both Topeaks and a Lezene. One other consideration...When it's 90-95° I'd rather stand and push down like a floor pump (Topeka) than sit and pump with two hands (Lezene).
I've tried the floor pump trick with the Morph, but the little tab isn't long enough to fit under my road cleat. Plus, I'm 6'4", so bending over that far is more painful than mildly crouching and using two hands. And while I'm sure that the Mountain Morph would inflate a larger tire faster, it's even heavier than the Road Morph and I wonder how it would do with high pressure road tires. The specs say it will inflate to 160 PSI, but the Road Morph struggles to get to 90 even though it also says it will inflate to 160 PSI.