Pixelated Images

[Bluxart]

Hi, I use the Aqua-Resizer script for my some themes. Some user has a little problem.

The script resize perfectly the images, but all images is pixelated. I think the problem is the server/hosting.

A possible fix or solution? I read all issue/docs but I don't find anything.

This is the screenshot: http://cl.ly/image/0x1P34052w29

Thanks for your time.