It certainly didn't work perfectly in 2009. I had to turn off transparent blocks and greatly reduce the draw distance to get decent framerates on my laptop at t

It certainly didn't work perfectly in 2009. I had to turn off transparent blocks and greatly reduce the draw distance to get decent framerates on my laptop at the time. Maybe you had a better PC then I did. Java Minecraft still requires at least 10x more processing power than it would in a more suitable language.