Backup up database to compressed local folder - what will be the performance implication? I have sql server 2016 web edition on Windows 2016 server VM. 

I want to backup the database, to a folder on a local drive (SSD) - please don't ask why, long story. 

Due to the size of the DBs, and comparatively small size of disk, I want to back up to a compressed folder. 

What would be the performance implications? Will they be noticeable? (VM with 16 cores, 128GB ram, typically cpu utalization ~ 20%)

Looking for some suggestions based on experience
Don't backup to a compressed folder.  There are supportability problems for SQL Server with compressed folders.  See here.  Take a compressed backup instead.