As of September 3, 2019, new Parsec users will no longer have the option to rent cloud computers. If you already have credits in your account on that date, you will have the option to keep adding credits and renting machines until January 1, 2020. After January 1, you will no longer be able to add credits to your account, and you will need to use your credits entirely by February 1, 2020. If you'd like a refund for your remaining credits, please click here.
If you're experiencing lag, and you think it has something to do with the connection on the cloud machine, try running a Speed Test from inside the cloud PC. There is one issue, however. Speed Test doesn't properly identify the origin IP of the cloud PC IP address, so it thinks you're in California when you might actually be in Amsterdam. You can change the location here:
You may also want to tell Steam or other stores which data center to use for downloading games. Try to find the one closest to your cloud PC.