Super important to optimize all the images before uploading them to RMRS to keep the main page weight as small as possible.
Example of importance of using optimized images and easy way to optimize each created image.
Please watch the video:
http://screencast.com/t/bUjXjh6qBG
The best way is to optimize images while saving.
- Create image \banner in Photoshop.
- Use File-> Save for Web and Devices or Keyboard Shotcut – Alt+Shift+Ctrl+S
- Choose file format as JPEG; Quality 60%