Achieve lowest latency? What are the limitations? E-drums

Latency = (buffer size/sample rate)*2



Got it. Lowest buffer size and highest sample rate will give me the lowest latency, but also require the most horsepower from my computer. As an e-drummer, I need the lowest to play with midi -> superior drummers sounds live. Fast 32nd notes are throwing me off at 64 buffer size, but honestly quite respectable for slower beats.



Question #1

How do I achieve a buffer size of 32? Right now my limits in superior drummer and Ohm studio are both 64. What is keeping it from going to 32? My drum module/drivers, usb out mixer/drivers, the daw software I'm using, or my sound card's hardware/drivers?



Question #2

What is the absolute way to get the lowest latency using internal software to convert midi notes and play them back out again (midi from drums -> daw/superior drummer conversion -> back out to audio live)? Money not being an issue here. From what I've read, 0 latency interfaces is not the bottleneck here, the daw/software/drivers to convert the midi notes and push them back out again is, which goes back to my 32 buffer size question.



I need to know how to achieve the lowest latency possible, costs aside.

Achieve lowest latency? What are the limitations? E-drums