Compression turned into expansion

Hi to Community.

While compressing some files - a mixed scan, excel and autocad originated pdf - it results an enflating rather than a compression. For instance an 80 MB file grows to 112 MB after the first compression run and to 132 MB to a second compression run. 

The Acrobat settings are: Optimize Scanned Pages/Apply Adaptive Compression + JPEG2000 + (Deskew ON, Backgr. remov. OFF, Descreen ON, Text Sharp. LOW) + Recon. Text NOPE 

I've no clue either about why it inflates and how to conivnce him to compress. Any help is welcome.

Installed Acrobat:
Version: 24.1.20604.0
Creation Date: 2024/03/12

Creation Time: 00:55:20

Thanks & kind regards

Xave