Midi delay to hardware sampler

[[insert electronic music]]

Been loving the nerdseq so much!! but run into my first little problem,
Im sending the midi out to an emu or Akai rack sampler (ESI 4000/CD3000i) 
my mate pointed out there's a slight delay on it and now it cant be unheard 
When checking the signals on a computer there's between 0.005-0.01 second difference in the triggering of the cv and internal samples to the midi samplers 
there's no midi chain its direct form nerdseq to sampler
When ive searched if its a problem on the sampler side of things all I can find is people saying the advantage of them (over computers) is the lack of signal delay.

Am I missing any setting I can change or any routes round how to fix it?  outside of recording it on a different channel and editing on a computer? 

thanks for reading and making this beast of a sequencer
hope you having a good day
x