Tps 5 - 6 in a survival server for 300 players

Hello, I was trying to open a server that could enter at least 100 people, with a maximum of 300, but every time people enter the server, the tps start to drop to 5 or 6. I don’t know what could be because the chunks They are loaded with the chunky and the spigot.yml, bukkit and paper are optimized. I leave here the report of the timings:



idk man, looks like generally overloaded hardware to me