How to troubleshoot and reduce lag on your Minecraft server - Knowledgebase - BisectHosting
Possibly too much memory usage on server? : r/Minecraft
Ping Check - A new way to check if that lag is yours or the server's! - Suggestions - Minecraft: Java Edition - Minecraft Forum - Minecraft Forum
Low ping, high FPS, average internet speed yet EXTREMELY BAD LAG in the evenings! Minecraft - Java Edition Support - Support - Minecraft Forum - Minecraft Forum