LX3 - How to increase zoom ? (2.5x is a problem for me!)

My wife offered me this marvelous camera but it lacks zoom. Optical is only 2.5x and I do not want to use digital because of poor quality fotos.

If I can have an adapter to have a zoom near 10x it would be good for me, but with a good quality results. I read that I must have a tube adapter to mount a lens.

Does anyone can suggest a lens for this mount that works fine ?

Thanks.