So your choice of cam( latter torque band maturity) and a tight converter means you’ll wait a little longer for peak acceleration in first gear. Once you pass that you want latter shift points. All the slippage of the converter will continue even in top gear without a lock up converter, thus creating a ton of heat that the trans cooler has to dissipate. This is the biggest reason you should cam an auto smaller than a manual. In your case go tight on the stall 1800~ and see what f you like it. It will likely leave lazy and pull latter. It that’s really it. Play with gearing for better leave and low speed acceleration.