Is the "br0" network config known for slowing down container in/out traffic?

[doesntaffect]

My UnRaid system is running several container such as Nextcloud, Mariadb, cloud commander, photoprism etc. to name a few. 

 

Most of them where running with a dedicated IP, configured through br0. I cloud never reach more than 3 - 6Mbyte/sec traffic while the container where using br0.

After flipping them to standard bridge mode I can max out my wifi with >50 Mbyte/sec. 

 

Is this known resp. was my config wrong? I understood "br0" as a option to separate hosts / services.

 

Thanks for any advise