Rattm Motors offers a 2.2kw Spindle that is a bit longer than the other 2.2kw Spindles around and has more Torque. Together with the Nowforever VFD which has some kind of simplified vector control, this setup will work even at lower speeds.
https://www.ebay.de/itm/EU-Ship-CNC-...sH9:rk:23:pf:0
As you can see in this Video the VFD powers the spindle even at lower speed.