Backup without compressing

Is there a way to get it to backup it to a TAR without it beeing compressed?
I have several large mail accounts that use like 2 hours to backup.
OR is there a way to do a sort of manual script for backup that is possible to then again import if i need to recover an account?

One of my accounts started backup at:
2024-12-29 01:59:06
and finished at
2024-12-29 05:30:39
its like 15gb account, and of those there are like 13GB emails.

IF i could just make my backups faster and have the possibility to import it again i would like that.