Proxy websites eats a lot of CPU and somehow memory usage. If you place your site in a shared hosting environment, all users/accounts on that server will suffer because of your system resources hog website. You have been recommended to subscribe a VPS since in a VPS you do have your own RAM and somehow an equal share CPU. In this way you wont affect anything, also you can use your VPS for storing a lot of your site. You'll also be entitled to receive a dedicated IP unlike on shared hosting environment using shared IP. You can find a lot of VPS providers here just look around DP, and you'll find your best deal.