Modern music is very easy to mix thanks to drum computers but old track where the drum section is done by human efforts are a nightmare to mix.

How do you guys solve this problem?
perhaps by third party software if Mixmeister can't do it ..meaning, adjusting an old analog track so that it follows te beat more exactly.

Mixmeister has handy inner sprockets that allow you to adjust the beatmix area for inexat beats. If it goes off you can drag the dotted black lines back to the beat.

Oh, I wonder why I did not find that.
Thanks.