User blog comment:ImperiexSeed/Was Hunter faster than Barry before he became Zoom?/@comment-26537965-20160806083252/@comment-3423279-20160808010132

Again... Barry kinda sucked with his powers and was all about nonlethal takedowns. Fighting a guy running at Mach 1 that isn't trying to kill you is probably easier than fighting a guy moving at the same speed but instead of wanting to imprison you in a jail cell he is currently in the process of snapping everyone's neck.

Sand Demon and maybe Earth One's Tar Pit are the two known metas I think could survive this due to being.. well... sand and tar.

Saying he wanted more just means he wasn't satisfied with the speed he had at the time.