Short delay times in Analog mode with high feedback used on drum sounds is great if you're a fan of dirty sounds.
The high feedback/dry-wet amount is great when you are using extreme bpm values when experimenting.
I use the Akai LPD8 and have no delay with the pads. You may need to configure the MPX8?
But yeah you'll need to turn down the OSC volumes of the samples in you kit.
The gold knobs are mostly track specific but the matrix is global I believe.