Yes and no.

The Wild Card round is way too long considering how few people actually are involved in it, cut it down to 2-3 days at most so that we don't have 80% of the league waiting for what feels like a week. Aside from that though, the playoffs aren't too long. If anything, our league has a problem with the season + playoffs being too short compared to the offseason (because simming has become so efficient which makes seasons shorter whereas off-season will probably always be 2-3 weeks at least), cutting down the playoffs would mean even less time where there is actual game action going on. Also as kit said, cut down on the downtime between rounds or the regular and the start of the playoffs first before going after the stuff that is actually supposed to be the most important time of our season.