Google vs Microsoft Inbox Landing

Hi all,
I am a founder of a startup and have had landed some amazing multi-year contracts through personalised email + video.
We only send max 20 emails a day over 6 inboxes

The delivery rate has tanked this year especially for Microsoft mailboxes. I already have spf, dkim, dmarc etc and the landing rate in Google mailboxes are pretty good.

Anything I could do to improve delivery rate in Microsoft mailboxes?

https://preview.redd.it/np29uuw531hf1.png?width=2742&format=png&auto=webp&s=e268581c67305dbc35842dc47d3ee0bcc1143225