Now after a big discussion and evaluation, went with their VPS Level 3 hosting. The script works great, but the whole website has turned slower, and running a simple Wordpress plugin (which worked great on shared) has actually crashed the VPS due to memory overload.
Now VPS seems too slow for me, and I'm actually paying a hefty fee compared to shared, just so I can run the script. But CPU/RAM assigned to me is too low.
What do you suggest I get?
2. Another VPS?
3. SSD VPS?
My budget's around 30-40 a month /w Cpanel.
PS: Shared hosting is actually fine with me, it's only because the script won't run, that's why I consider changing. And this change is expensive!