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    <title>Mojang Studios Jira</title>
    <link>https://bugs.mojang.com</link>
    <description>This file is an XML representation of an issue</description>
    <language>en</language>    <build-info>
        <version>9.12.2</version>
        <build-number>9120002</build-number>
        <build-date>10-01-2024</build-date>
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<item>
            <title>[MC-848] Extreme Performance Issues</title>
                <link>https://bugs.mojang.com/browse/MC-848</link>
                <project id="10400" key="MC">Minecraft: Java Edition</project>
                    <description>&lt;p&gt;Minecraft gets EXTREMELY laggy after it has finished loading regardless of render distance or in fact any setting. This even happens on tiny render distance. I have had lag before but not to this extent. I don&apos;t know what&apos;s causing this but I really hope it gets fixed otherwise Minecraft would be unplayable.&lt;/p&gt;

&lt;p&gt;&lt;b&gt;Where lag usually doesn&apos;t happen:&lt;/b&gt;&lt;/p&gt;

&lt;ul&gt;
	&lt;li&gt;Superflat worlds&lt;/li&gt;
	&lt;li&gt;Basic Terrain&lt;/li&gt;
	&lt;li&gt;The End&lt;/li&gt;
&lt;/ul&gt;


&lt;p&gt;&lt;em&gt;PS. Optifine/updating LWJGL doesn&apos;t make a difference whatsoever, in fact it actually slows it down even more.&lt;/em&gt;&lt;/p&gt;</description>
                <environment>OS X 10.8.4, Java 1.6.0 Update 51 and Java 7 Update 25&lt;br/&gt;
Intel Core 2 Duo 2.4 GHz, 4 GB DDR3 RAM 1067 MHz, Nivida GeForce 320 m 256 shared VM</environment>
        <key id="12128">MC-848</key>
            <summary>Extreme Performance Issues</summary>
                <type id="1" iconUrl="https://bugs.mojang.com/secure/viewavatar?size=xsmall&amp;avatarId=18903&amp;avatarType=issuetype">Bug</type>
                                    <status id="5" iconUrl="https://bugs.mojang.com/images/icons/statuses/resolved.png" description="A resolution has been taken, and it is awaiting verification by reporter. From here issues are either reopened, or are closed.">Resolved</status>
                    <statusCategory id="3" key="done" colorName="success"/>
                                    <resolution id="7">Invalid</resolution>
                                        <assignee username="-1">Unassigned</assignee>
                                    <reporter username="dlminecr">Pixelgraph</reporter>
                        <labels>
                            <label>FPS</label>
                            <label>framerate</label>
                            <label>lag</label>
                            <label>performance</label>
                    </labels>
                <created>Sat, 27 Oct 2012 07:07:16 +0200</created>
                <updated>Sat, 8 Aug 2020 02:16:38 +0200</updated>
                            <resolved>Thu, 1 Nov 2012 01:40:23 +0100</resolved>
                                    <version>Minecraft 1.4.2</version>
                    <version>Minecraft 1.4.6</version>
                    <version>Minecraft 1.4.7</version>
                    <version>Snapshot 13w01a</version>
                    <version>Snapshot 13w01b</version>
                    <version>Minecraft 1.5</version>
                    <version>Snapshot 13w11a</version>
                    <version>Minecraft 1.6</version>
                    <version>Minecraft 1.6.1</version>
                                                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                            <comments>
                            <comment id="339548" author="cubethethird" created="Tue, 1 Nov 2016 00:30:48 +0100"  >&lt;p&gt;&lt;a href=&quot;https://bugs.mojang.com/secure/ViewProfile.jspa?name=Capt+Lethargy&quot; class=&quot;user-hover&quot; rel=&quot;Capt Lethargy&quot;&gt;Capt Lethargy&lt;/a&gt;, this report is 4 years old, and is for the PC edition. It is recommended you look at the MCPE section of the bug tracker for your issue on mobile.&lt;/p&gt;</comment>
                            <comment id="339527" author="capt lethargy" created="Mon, 31 Oct 2016 19:51:27 +0100"  >&lt;p&gt;I am suffering similar problems. Game used to be smooth but is now jerky and landscapes/ backgrounds are incomplete.&lt;br/&gt;
I have happily played on iPad for 3 years so it is def the game not the equipment.&lt;/p&gt;</comment>
                            <comment id="94489" author="dlminecr" created="Fri, 26 Jul 2013 12:47:58 +0200"  >&lt;p&gt;Exactly the same for me Registeel.&lt;/p&gt;</comment>
                            <comment id="80176" author="registeel1234" created="Tue, 2 Jul 2013 01:02:29 +0200"  >&lt;p&gt;I have a good computer and, before I get the lastest launcher and the 1.6.1 patch, the game was really smooth. However, after getting the new launcher and the new patch, I get 8 FPS all the time. &lt;/p&gt;</comment>
                            <comment id="22061" author="dlminecr" created="Fri, 16 Nov 2012 04:35:21 +0100"  >&lt;p&gt;Minecraft should run much more efficiently. My computer runs perfectly on everything else but Minecraft. I see others with awesome specs but they still get terrible lag. You&apos;ll just have to experience it for yourself to see how frustrating it is.&lt;/p&gt;</comment>
                            <comment id="18333" author="cubethethird" created="Mon, 5 Nov 2012 06:12:43 +0100"  >&lt;p&gt;It&apos;s just that there is not enough information to support that this issue is specifically a bug relating to the minecraft client, as opposed a hardware issue, or operating system issue. In order for it to be solved here, it would mean that the developers would have direct access to your computer, because frankly there just isn&apos;t enough information.&lt;/p&gt;</comment>
                            <comment id="18322" author="dlminecr" created="Mon, 5 Nov 2012 05:30:01 +0100"  >&lt;p&gt;I was quite annoyed at my post getting marked invalid. I feel like all mac users are getting ignored and &apos;oh thats just your problem&apos; said to them. And yes if someone does come along I know this comment might not be suitable for this site and should be directed to the forums. &lt;img class=&quot;emoticon&quot; src=&quot;https://bugs.mojang.com/images/icons/emoticons/sad.png&quot; height=&quot;16&quot; width=&quot;16&quot; align=&quot;absmiddle&quot; alt=&quot;&quot; border=&quot;0&quot;/&gt;&lt;/p&gt;</comment>
                            <comment id="17992" author="en24" created="Sun, 4 Nov 2012 14:20:27 +0100"  >&lt;p&gt;There is a forum for this on the minecraft website.&lt;a href=&quot;http://www.minecraftforum.net/topic/1403906-131-fps-issues&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;http://www.minecraftforum.net/topic/1403906-131-fps-issues&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="17984" author="en24" created="Sun, 4 Nov 2012 13:55:58 +0100"  >&lt;p&gt;This is NOT resolved. It is a very common problem and should be given further attention! It got even worse in 1.4.2&lt;/p&gt;</comment>
                            <comment id="17905" author="dlminecr" created="Sun, 4 Nov 2012 06:39:33 +0100"  >&lt;p&gt;No the lag hasn&apos;t been fixed, even after the java update. The lag is getting substantially worse too. Survival is impossible without death.&lt;/p&gt;</comment>
                            <comment id="14291" author="dlminecr" created="Sat, 27 Oct 2012 09:57:44 +0200"  >&lt;p&gt;Thank you Martin for reminding me to update. The update has made a slight difference in performance but I&apos;d like to see the problem solved completely. Or an OS X version of OptiFine.&lt;/p&gt;</comment>
                            <comment id="14277" author="grygrflzr" created="Sat, 27 Oct 2012 09:05:22 +0200"  >&lt;p&gt;Your Java is still outdated. While you are using 6u35, 6u37 is available.&lt;br/&gt;
Download here from Apple&apos;s official servers:&lt;br/&gt;
&lt;a href=&quot;https://support.apple.com/kb/DL1572&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://support.apple.com/kb/DL1572&lt;/a&gt;&lt;br/&gt;
Java 7 is not yet properly working on OS X.&lt;/p&gt;</comment>
                            <comment id="14273" author="dlminecr" created="Sat, 27 Oct 2012 07:25:31 +0200"  >&lt;p&gt;I can&apos;t do that, I installed the new Java 7 for Mac but Minecraft doesn&apos;t seem to use it. Edit: When I try using the MinecraftLauncher.jar file in the actual Minecraft Launcher package, it DOES use java 1.7 but crashes with a LWJGL exception.&lt;/p&gt;</comment>
                            <comment id="14271" author="cubethethird" created="Sat, 27 Oct 2012 07:13:27 +0200"  >&lt;p&gt;You should try updating your java. I found it to give a performance boost.&lt;/p&gt;</comment>
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