Running.

The frequency of the legs moving is bound to the frequency of the free swing of the leg, bent in the knee and the ankle as for running. So, even the great change of strength ( for example, your five times) raises the speed very slightly - (tenths of a percent). And if your supermen have larger muscles, their running speed will drop.

Notice, that the best runners are very far from being strong.

Running.

The frequency of the legs moving is bound to the frequency of the free swing of the leg, bent in the knee and the ankle as for running. So, even the great change of strength ( for example, your five times) raises the speed very slightly - (tenths of a percent). And if your supermen have larger muscles, their running speed will drop.

Notice, that the best runners are very far from being strong.

Sailing on all yachts or windsurfing. Here the strength won't help

Chess and checkers. :-) Those belong to sports, too.

Cricket and all sports that need accuracy - more strength leads to less accuracy.

Horse sports The personal strength of a jockey gives nothing. And if he has larger muscles, he loses.

Acrobatics and things. Tens of sports that demand beauty of movement.

All air sports without "the human-powered aircraft"

Kite sports

Unicycle sports - they demand equilibrium, not strength.

Really, simply look into the list of sports - more than half of them do not demand strength.