Netgear R7000 - ddwrt VPN slow down

[LordVader]

I brought an netgear R7000 due to my SH3 having really poor wifi single at home.

Also brought it with intention to install dd-wrt and use openvpn to protect my whole network.

Installed dd-wrt all fine and openvpn with PIA but when i connect to PIA it kills my download speed (on virgin 200).

Download is max 40-50mb. As soon as i disable the vpn on the router it goes straight back upto max speed.

Cant understand why? Using the PIA client on windows normally i still can get max speed.

 

[LordVader]

Is there any router you can buy that's fast enough for max VPN connection?

 

[LordVader]

Reading about looks like even with a dual core 1GHz just not fast enough to handle fast VPN connections....nor can i find anything that can run at full speed