how to change jvm arguments in minecraft new launcher

It is strongly recommended that you go through all of the following categories, as they are generally equally important in improving performance. There are also a handful of other things that make TFC much more resource intensive, so this page is a guide to help make the game run as smoothly as possible. That means that in every chunk (which is an area of 16x16 blocks), there are about 20,000 more blocks to load. In TFC, sea-level is all the way up at about y=140. In vanilla Minecraft, as well as 99.9% of all modded Minecraft, the sea-level of the overworld is at y=63. Your system may be able to play other heavily modded instances of Minecraft with no issues, but when it comes to TerraFirmaCraft it's like comparing apples to oranges.

Minecraft 1.7.10 is known to have some performance issues compared to other versions, and this is made even worse by the fact that TerraFirmaCraft utilizes the full 256 world height.

3.2 JVM's for Alternative JRE's of Java.3 Performance Optimization Using JVM Arguments.

2 Performance Optimization Within Minecraft.

How to change jvm arguments in minecraft new launcher