I think Terumi's pressure is fine, as long as you're not looking for any guard-bonus-inducing bull**** - just abuse the plus frames and try to keep the opponent guessing on when you'll risk anything minus. He's really odd in that his meterless options aren't TOO threatening, but his meter gain is such that you're free to burn it on reversal supers, counter assaults, rapid cancel mixups, and all that quite often. Especially since his Drives build good meter even when blocked.
If you're looking for a character who wins in 30 seconds or bust, try Bullet. She has serious issues if you don't ever let her gain Engage levels, but once she gets going and lands that first 5D/j.D, it's a vortex of ever-increasing damage.