How can I make a modpack run quicker?

[xXSweet_VenomXx]

Hi! Does anybody know how I can make a modpack run quicker? Maybe a Java update? Thanks

[Curunir]

Apart from higher CPU and memory clock speeds, I see not much that can be done. An SSD will help with startup times, but that is about it. We recently discussed it >here.

[Kalbintion]

There may be some java flags that can be set to improve certain performances, but it would be on a case by case basis and isnt something you could just throw into a modpack as default settings and expect it to work 100% of the time for everyone.

[planetguy]

Which mods are in the pack, and how powerful is your computer? That can have a lot to do with things...

 

Personally, with a modpack a bit big for 1 GB of RAM allocated, I've seen a large performance boost launching Minecraft with the -XX:+UseConcMarkSweepGC JVM flag. This will only work if you are stuck with 32-bit Java or don't have quite enough RAM for the pack.

 

Mods that, in the past, I've noticed are hard on performance are ProjectRed and LogisticPipes - I've dropped both from a 1.6 pack because they were too expensive. On 1.6 Mariculture slowed down wgen beyond the point of usability, I found.

 

You might be able to add Optifine or FPS++ to improve performance, but Optifine has compatibility issues with more than a few mods.