If you read the earlier pages of the link I left you'll see that lifetime membership means paying to show you to the LW site for the free version of LW. Do a search on the forum for mymusic*

Freezing will most likely be caused by either Java or ram. Earlier versions of Java were & in fact still are not that efficient, but have improved. And Java is not ram efficient also which doesn't help but the later versions are a little better in that regard also.