Some game settings differ from their defaults. Tweaks like a lower view/simulation distance can meaningfully change the score:

• view-distance 12 (default: 10)
• simulation-distance 5 (default: 10)
• spawn-limit.monster 20 (default: 70)
• spawn-limit.animal 5 (default: 10)
• spawn-limit.water-animal 2 (default: 5)
• spawn-limit.water-ambient 1 (default: 20)
• spawn-limit.ambient 1 (default: 15)
• ticks-per.monster-spawns 10 (default: 1)

Keep this in mind when comparing with default-configured servers.