By "really slow" I mean, everything - moving the mouse becomes laggy and general computer operation is impossible until it's finished loading, and this persists for at most 20 seconds. It's like running Minecraft with shaders (for me at least). It hasn't always done this however, back when the very old launcher (without the built-in tumblr page) was used, it was just fine. But with the new launchers, this problem persisted. I had to create my own launcher in C# to resolve this problem but it shouldn't have come to that.
I've found only one person with the exact same problems I am having, and he posted a topic here, but none of the advice given there has helped. Minecraft itself runs fine, at 60fps. I have 4GB of RAM and a graphics card capable of running any game at normal settings. I'm on a 20Mbps connection (UK). I have re-installed several versions of Java several times, both x86 and x64, but with no success. I am currently running Java version 7 update 25, 64-bit, and have no other versions installed. I am using IPv4. Disconnecting from the internet causes this problem to vanish, resulting in no lag at all, and I can play minecraft offline.
I use Microsoft Security Essentials (because I know what a virus is and am smart enough to not download one), and have removed it, which has no effect.
It should also be noted that I receive the exact same results (possibly worse) when attempting to launch StarMade. I've observed this issue for over a year and can safely assume it's a connection related problem.
If you would like me to provide you with more information on my computer specs or any other related things, I will do so.
Things i will NOT do:
- Reinstall Java (done this already, no luck.)
- Redownload Minecraft (unnecessary.)
- Update my drivers (they're up-to-date.)
- Any other meaningless task (I'll know what a meaningless task is when I see one.)