If you'd mod them by stretching the canvas on the wings, - well....a lot better.
BTW, just flew a 1960 model of a Jodel the other day.
Bloody thing will with it's mere 90 hp outperforms a Cessna 172, (with 2 passengers) with absolute ease. Absolutely an incredible little thing. And....stall at some 42 kts, and there are no flaps, just airbrakes!