Bandwidth problems

[nickles]

Our server (dedicated FTP, 1000 Mbps switch/NIC) seems to offer no more than 1.2 MBps (~ 8 Mbps) download bandwidth. I presume that this is a provider issue (Strato, Germany), but to be sure I'd like to know if there are any knobs to turn in PLESK (latest version)?

The only domain is assigned to the synced umlimited profile, no bandwidth limitations there.

Are there any QoS, or other bandwidth regulating options?