No, not at all. You may notice it takes a little more throttle for it to move from a stop, but the difference is marginal.
I drive my gn everyday with a 3000 stall converter and have no problems at all. I also drive the t-type all the time with a 3200 stall converter. You do feel a little difference, but it spools so fast it's almost like driving a non turbo car.
Also try doing a search on google on “How a torque converter works". This should help you understand it better.