AirPod Pro Bass response on 2D67 poor

Wondering if anyone else has experienced similar issues, sound quality on my AirPods has been fantastic but I noticed the other day that bass response was terrible and highs are extremely pronounced and tinny. Checking my firmware it seems I've been updated to 2D67.

This has absolutely destroyed my listening experience. Unsure whether to raise a support request or wait it out to see if another release comes out.