Screenshots says everything.
Contextuals engines only turned on. 1200 threads.
How get such LPM/VPM:
1. Dedicated server. VPS limit your lpm. VPSes are good for some tasks, but not for SER if you are serious about link building.
2. Self made proxies.
3. Self made catchalls.
4. OS tweaks.
5. Self made lists (not obligatory).
Costs of setup i use (costs of server, catchalls, proxies) ~$100 a month.
Conslusion - you dont need multiple vpses to build ~1 milion links a day