what vpn works best for speed with my mr600 and how do i set it up please

I'm looking to buy some TP-Link switches and wondering which 305m CAT6 cable to buy. Does TP-Link make the cables? If so, where can I get them?

Noticed that the Archer C4000 allowed for WAN aggregation on Lan1 port. Would be AWESOME if firmware could be updated to allow for Lan1 to be used as a failover port. Use case: Typical homeowner -- ha