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Solution to 1.7.10 Enchanted Bow Lag
Background

Back when I used a MacBook for Minecraft, on 1.7.10 Vanilla, Optifine, or Forge, I experienced a huge drop in frames (from 150+, often to <60) upon drawing back an enchanted bow. I searched for a fix to this issue for a while, but found nothing, only solutions for similar lag situations on 1.6.X. Finally, after posting on Badlion and several other forums, I found TheMasterCaver on Minecraft Forum helped me. Others especially on Macs and computers with integrated graphics seem to experience this lag, so I thought I would post a thorough guide to getting rid of that lag. This is not a problem texture packs as some may suggest.

I know of several older threads describing this problem, which are linked below. Perhaps someone with the issue would like to read other people's advice etc.

https://www.badlion.net/forum/thread/81145
https://www.badlion.net/forum/thread/129955
https://www.badlion.net/forum/thread/114144/post/615019
https://oc.tc/forums/topics/5649a0fd5f35b99d00000adb
https://oc.tc/forums/topics/53bf1c3c67d52228f801002f

The Solution

To end this lag, you need to download two things: MagicLauncher and a modified bly.class. MagicLauncher makes it a lot easier to load the .class file, by eliminating the need for you to manually add it to the minecraft.jar.

Next you'll take add the class file to the Mods section in Magic Launcher.
1. Launch MagicLauncher

2. Click "Setup"



3. Ensure that the Minecraft profile you want to use is selected (probably Forge 1.7.10). The items in the red box should look similar to this.



4. Click "Add" and locate the bly.class. You may want to place it somewhere in your .minecraft folder (I made a new folder called MagicLauncher Mods), but don't put it in your "mods" folder because Forge won't run it without MagicLauncher. Find the file and click "Open."




5. Click "Advanced" and paste "-Dfml.ignoreInvalidMinecraftCertificates=true -Dfml.ignorePatchDiscrepancies=true" into the "Parameters" box. This is telling Minecraft to ignore that the Minecraft.jar has been modified.



6. Click "Okay" below, enter your Minecraft username and password and click "Login." Minecraft should launch and you shouldn't lag when drawing an enchanted bow.

Hope this helps some people out, I know that issues like this can be very frustrating especially when dedicated forum searching is of no avail. I'm happy to help via the forums here or even better, on TS which I think can be faster for troubleshooting.

Cheers.
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Thanks dude ..
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I love you.
This for other reasons, not the enchanted bow lag, that doesn't happen to me.
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Pretty good, thanks.
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Unshift wrote

I love you.
This for other reasons, not the enchanted bow lag, that doesn't happen to me.


Well cool I guess.
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THANK YOU SO MUCH I HAD THIS PROBLEM FOR OVER A YEAR NOW AND YOU HAVE A SOLOTION FOR THIS THANK YOU!!!!!!!!!!!!!!!! I CAN FINNALY USE FORGE NOW!
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GenralKartoffel wrote

THANK YOU SO MUCH I HAD THIS PROBLEM FOR OVER A YEAR NOW AND YOU HAVE A SOLOTION FOR THIS THANK YOU!!!!!!!!!!!!!!!! I CAN FINNALY USE FORGE NOW!


Glad I could help :)
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Loyalbetrayer wrote

I want to thank you sincerely IronicGolems as I have been looking for a fix to this problem for months. You gave great step by step instructions, and I strongly recommend anyone with this problem to follow these steps and be glad for doing so. Also, I'm not great with computers and this took me less than 10 mins to solve. Thanks again! :D


You're very welcome :)
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Unshift wrote

I love you.
This for other reasons, not the enchanted bow lag, that doesn't happen to me.

What is the other reason?
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iPepsi wrote

Unshift wrote...


What is the other reason?


Unshift is a closet homosexual.
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I have this problem but I'm not willing to use those stuff, instead I use laby 1.8 for blockhit
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iPepsi wrote

Unshift wrote...


What is the other reason?
Basically i don't use forge, it just doesn't work for me, but i need togglesprint and optifine together on the same client.
So, what i found is a download that combined both bettersprinting mod and optifine into one mod, so i can use that instead of forge.
But, i couldn't add any mods like armorstatus HUD and stuff like that, but now i can :D
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chocs wrote

iPepsi wrote...



Unshift is a closet homosexual.

That is not funny in any way, it is actually rather immature and I find it disappointing to see comments like that.
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iPepsi wrote

chocs wrote...


That is not funny in any way, it is actually rather immature and I find it disappointing to see comments like that.


I agree, the prevalence of homophobic comments on Badlion is disappointing.
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Is this the bug where when u r using the bow it lags and moves weirdly

tag me back if yes
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SirDeqdly wrote

Is this the bug where when u r using the bow it lags and moves weirdly

tag me back if yes


@chay_on9jai yes, this is the bug where Minecraft lags severely upon drawing the bow.
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iPepsi wrote

chocs wrote...


That is not funny in any way, it is actually rather immature and I find it disappointing to see comments like that.


He said "I love you". Lol get some humour. Guess some staff have to be pretty boring spoilsports.
Maybe you're German, if so I forgive you kind sir/madam.
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chocs wrote

iPepsi wrote...



He said "I love you". Lol get some humour. Guess some staff have to be pretty boring spoilsports.
Maybe you're German, if so I forgive you kind sir/madam.

Was talking about the "closet homosexual" part rather than the comment that you pointed out… Also I am from Finland and that is even more offensive now. Stop.
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iPepsi wrote

chocs wrote...


Was talking about the "closet homosexual" part rather than the comment that you pointed out… Also I am from Finland and that is even more offensive now. Stop.

http://static.fjcdn.com/pictures/Blank_a16d1e_5495086.jpg
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