Hi there,
This is Amal from Skynats team.
I have read your project and please find our suggestions mentioned below.
1. As I checked, your website is having large hits that show from the CDN reports, so moving to a VPS is not recommended as most VPS have bandwidth limitation
2. Also, the resource needs will be increased as your user access increases, so a VPS may not be sufficient for your requirement. If you buy an 8gb RAM vps also, it will be under virtualization with limited usage.
3. We recommend moving to a dedicated server with it's own resources assigned, so it will be available for your website without any limits.
4. Our dedicated servers will have Unlimited bandwidth, SSD powered disk, ddos protection etc will ensure your site to be running without any downtimes.
5. We provide managed dedicated servers, so your server and website will be managed by us fully and will have 24/7 monitoring.
Regarding the price, please chat with us.
Thanks and have a good day.
Amal