Ask HN: VPN with plenty of speed?

After the recent policy changes, I've decided I need to be more secure with my devices. I signed up for a VPN (PIA) and it works fine, but it is not terribly fast, and I see a big slowdown. I have heard PIA is maybe one of the better VPNs (in terms of security/openness/terms) and it is working okay for plain browsing, but I think I also need an account with a VPN provider that is fast enough to not slow down my (250mbps) connection.

Any suggestions for fast VPNs that are still good in terms of security and transparency?