Peertube Mirroring Speed

Hello everyone, I’m hosting a few rather large instances (overall used space is ~500Gb) completely mirroring each other. However, it seems that copying process is taking a lot of time (about 20 Gb/day at max). One of the PCs is using 1 Gb/s bandwidth, other is at 200 Mb/s.

How can I make this process faster? Are there any ways of controlling redundancy speed?

Thanks for your attention.