If you are using PaperMC, your server autosaves based on Bukkit's settings. However, you may override this by adjusting the auto-save-interval value within the Paper Config (paper.yml) file.
disable-teleportation-suffocation-check: false auto-save-interval: -1 keep-spawn-loaded-range: 2
Additionally, you may limit the number of chunks that are auto-saved in one tick by changing the value of the max-auto-save-chunks-per-tick value.
delay-chunk-unloads-by: 30s max-auto-save-chunks-per-tick: 24 lava-flow-speed: normal: 30 nether: 10