Dragons are large, busy creatures, and a world full of new structures and mobs asks more of your computer than vanilla Minecraft. You rarely need drastic changes. A few sensible settings usually make the difference between stutter and smooth flight.
Allocate memory sensibly
Modded Minecraft needs more memory than vanilla, but giving the game nearly all of your system memory can cause longer pauses and starve the operating system. Increase the allocation in modest steps in your launcher and stop when stutters from memory pressure disappear. Leave enough memory for your system and any other programs you run.
Video settings that matter most
- Render distance: lower it first. Flying dragons load terrain quickly, and each extra chunk ring costs more than it looks.
- Simulation distance: on versions that separate it, a lower value reduces how many creatures are actively processed.
- Entity shadows and particles: reducing these helps during dragon fights with fire, ice or lightning effects.
Use the mod's configuration
Ice And Fire Mod ships configuration files in your game's config folder. Option names vary between versions, so open the file for your version and read the comments beside each option. Areas worth reviewing include:
- Spawn and generation settings for dragons and other creatures.
- Structure generation frequency.
- Options related to dragons damaging blocks, which also reduce block updates.
Generation settings apply to newly generated chunks. Areas you have already explored keep what was generated there.
Advice for multiplayer servers
- Keep server and client mod versions identical.
- Consider limiting block damage from dragons to protect builds and reduce load.
- Pre-exploring the area around spawn spreads generation cost out before players arrive.
- Restart after changing config files so every setting is applied consistently.
Change one thing at a time
Performance tuning is easiest when you change a single setting, play for a while and compare. If a change causes errors rather than slowdowns, the crash and error troubleshooting guide will help you find the cause.
Ready to set up? Head to the Ice And Fire Mod download section or return to the full guide index.