I hate it when you enter the game and your GUI image isn't load and it's take a long time to load. So is there a way to make the image load faster for the GUI?
The reason the image won't load is because of a slow/bad internet connecting. So, no, you can't really speed it up, but you can preload the all of the games assets, so you won't have to load anything:
http://wiki.roblox.com/index.php?title=API:Class/ContentProvider/Preload