How to speed up loading and optimize my game?

Hello, i have made a very simple game for the sole purpose of learning and expanding my knowledge. The game is done and i published it here:

The only problem is that when i try to play a level, it takes a long time to load the level. If you play it, you would know what i mean. I am building it for webplayer. I don’t know if i should use streamed or not streamed, what is the difference? When i build it, the file sizes are:
4KB for html file and 2,497KB for .unity3d file. Is this too much? I have tried to find answers on the unity manual and on youtube but i can’t find anything on this topic. Please Help.

check out this page, you can also lightmap you scene (if you havent done so already) and reduce the texture and color quality.