New here. I was frustrated with the 1.8 update because there was so much lag and freeze on game load, so i just gave it several weeks & figured a fix would be put in. Now i see that the problem is for some not everyone, and its still being examined to find the cause of problem.
I am getting 'jerky' movements like the game wasnt keeping up with the walking or turning, it would stop mid-motion for 1 or 3 seconds then resume. I was also getting the same 1-3 second delays in the menu screens when trying to change the video settings, change the skin customization setting, etc. Also when I exit the game and come back later it wont reload the world, its stuck at 'Loading World - Building Terrain' and waiting 5 minutes it was still frozen at that point, although on 1 try it did load the world and I was floating in the clouds, no land chunks got loaded.
I tried the several fix methods suggested:
Reduced the video settings from Fancy to Fast, reduced render distance to 4, reduced framerate to 80. no change, still serious lag.
Looked for update for video driver, AMD Radeon HD 6800. no change
Downloaded new Java update, jre-8u20-windows-x64. no change
Looked at the folder called ResourcePacks, it was already empty, I didnt change anything there.
Running Minecraft 1.8 / vanilla
I do also have the mod TerraFirmaCraft and Forge installed, but i'm just launching the vanilla version now.
vsync. i dont know what this technical word means, but it would seem that changing that to OFF does help significantly. I can create a new world with Fancy graphics and normal render distance 14 and framerate 120, without the lag problem. However I am still having trouble after I exit and come back later to play again the world is not loading.
error messages file to go with my comment