Random high ping spikes (200–800+ ms) & disconnections on Blaze Plan – Singapore node (stable WiFi)

I'm facing random high ping issues on my Minecraft server hosted on MC Server Host (Blaze plan, Singapore node). Expected ping is around 130-150 ms for me but suddenly jumps to 200+ ms and sometimes spikes above 800 ms, causing players to get disconnected. This is happening to multiple users (not just me), even though our home connections/WiFi are completely stable. The spikes are random no pattern with player count or time of day. We are running some plugins (can list them if needed). Server is on the latest 1.21.11 version (let me know if you need exact details). Has anyone else experienced this on the Singapore node? Any tips on how to diagnose or fix this? Things I’ve already tried/checked: WiFi is stable (tested with speedtest + continuous ping to the server IP) No packet loss on client side during normal times Server resources look fine most of the time