I don't know what all the hubbub is about when it comes to VPNs slowing down internet speed. I've been with CyberGhost (CG) for over three years and I never had any issues with speed (other than my ISP's throttling). This is a no-brtainer. You want safety and anonymity, AND you want your stuff to run at the same speeds. Get Cyberghost.
Okay, I've never tried anyone else, but why should I? The team at CG is awesome when it comes to customer service too. I had an issue some time ago (that turned out to be due to MY stupid mistake) that I contacted them to help me solve. They not only fixed it, they even emailed me back a couple of days later to be sure everythig was still OK! You don't get that kind od one-on-one with most CS departments. Apparently, CG people remember what it feels like to be a real person with a legitimate problem. It may seem minor to others, but to YOU it's everything, right?! Well, CG understands that.
In short, Cyberghost is a great VPN at a great price and they are sollid performers on all fronts. What else is there to say? Choose Cyberghost. You won't be sorry. (And, "NO," I do not work for them, nor am I affiliated with them in any way.)