^^ what he said
You can give your auto a bit of a mild shift kit if you are competent enough to remove the valvebody and know how to fit welsh plugs.
I had my gearbox guy do it to mine, remove the 1-2 and 2-3 accumulator pistons (basically sprung pistons that are there to dampen the fluid flow and give a nice soft shift) and replace with welsh plugs.
The next level up is removing balls and springs and drilling holes bigger to increase flow which is pretty much what the MV autos stage 2 kit does I believe.
The welsh plugs in the accumulators actually made a huge difference, especially on the 1-2 shift. It doesn't flare any more at all and while it is a little harsh, it's quite acceptable for my daily driver. No more piss farting around, tell it to change, it changes and just GTF in there. Cost me bugger all, about an hour or so labour and some fluid.