The problem is with Superman's senses and x-ray vision and super sped, he should be able to capture Toyman before he could threaten anyone, it would take a lot of PIS to buy Superman having problems doing so.
That show wasn't very good though, it kinda sucked.
STAS was way better, where Superman was les powerful and the villains were way more dangerous.
But the problem lies in all honesty with the fans.
Especially the older fans, who want the planet-moving, slows down for the Flash, Superman. Not the more realistically powered, and more enjoyable Superman.