User blog comment:Thailog/Ep. 206 "Bloodlines" discussion/@comment-5001598-20120610203035/@comment-4928331-20120622120552

Wally isn't as fast as the Flash because he got his powers by replicating Barry Allen's accident imperfectly. He can run fast, and that's it. Unlike Impulse or Flash, he can't brake fast, react fast, talk fast, understand fast, or vibrate his molecules through solid objects.