Objective: help you identify real problems, avoid bad technical decisions and choose a solution adapted to your server or infrastructure.
CPU before quantity of RAM
Minecraft depends a lot on CPU performance. Adding RAM won't always compensate for a weak CPU or slow storage, especially with heavy plugins or mods.
Storage NVMe
Storage influences chunk loadings, saves and stability. Fast storage reduces slowdowns during peak activity.
Protection DDoS adapted
A Minecraft community may be targeted by network attacks. Protection should filter without blocking legitimate players or degrading connections.
Support and scalability
The support must understand gaming constraints. The offer must be able to evolve if the server grows: more resources, protected IP, migration to a dedicated server.
Good choice
Choose an infrastructure close to your players, with high-performance CPU, clear DDoS protection, backups and support capable of helping in the event of an incident.
Conclusion
The best approach is to start from the real symptom, check the technical causes, then choose protection adapted to the protocol and the community. An effective solution must protect without degrading the user experience.