Config:

ip rule add from <gate-ip>/32 to <iperf-server>/32 lookup <exitvpn-table> priority <exitvpn-prio>

:POSTROUTING ACCEPT [564945:38528417]
-A POSTROUTING -d <iperf-server>/32 -o exitVPN -j MASQUERADE

Lotuswurzel
hide.me
*NL-Roosendaal: 16.5 Mbit/s
*NL-Haarlem: 16.5 Mbit/s
*SE: 15 Mbit/s
*DE: 16.5 Mbit/s

PerfectPrivacy
*DE-Frankfurt: 88-97 Mbit/s

Spinat
hide.me
*NL-Roosendaal: 17 Mbit/s
*NL-Haarlem: 16.7 Mbit/s
*SE: 15.6 Mbit/s
*DE: 17.2 Mbit/s

Kaschu
PerfectPrivacy
*NL-Amsterdam: 50-77 Mbit/s