64-bit Java so laggy!

[SkillWaffles]

I have an 8g 64-bit laptop, and when I play vanilla minecraft with 64-bit java, I get high fps. But, every modpack is super laggy! When i switch to 32-bit java the modpacks run smoothly, but vanilla minecraft gets low fps. Someone please help! I have a core i7-5500U intel graphics card.

Edited April 23, 2016 by SkillWaffles

[GlowingQuantum]

I found this video for you, I havn't tried it but I hope it works.

 

          FOR THE 1ST OPTION

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If your on windows you first click the windows button on your keyboard or at the bottom left or wherever on your toolbar, type in the Search Programs And Files %appdata%

click on the .technic option and then click modpacks then select the modpack you want then change what the video says in the options.txt

        FOR THE 2ND OPTION

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Click the windows button on your keyboard or bottom left on your toolbar, Below your computer name 4 items below and right click the computer option and click proporties

and by the Installed Memory (RAM) and just do the rest of the video.

 

 

Sorry If I didn't help that much.