JPEG 2000 had very bad implementations for a long time.
Second Life went with JPEG2000 for textures, and when they open sourced the client, they had to switch to an open source library that was dog slow. Going into a new area pretty much froze the client for several minutes until the textures finally got decoded.
Second Life went with JPEG2000 for textures, and when they open sourced the client, they had to switch to an open source library that was dog slow. Going into a new area pretty much froze the client for several minutes until the textures finally got decoded.