PlaceholderAPI expansion for everything-per-seconds info:

  • Block Break (blocks/s) (%speedpersec_blockbreak%)
  • Block Place (blocks/s) (%speedpersec_blockplace%)
  • Speed (blocks/s) (%speedpersec_speeding%)
  • Player Attack (dmg/s) (%speedpersec_damaging%)
  • Player Hurting (dmg/s) (%speedpersec_hurting%)
  • Experience Collected (exp/s) (%speedpersec_expcollected%)
  • Clicking (click/s) (%speedpersec_clicking%)

Remember these are all run only on 1 Bukkit Task so you should be safe