Set download time and size preferences in Dreamweaver
Follow this procedure to set the download time and size preferences through the Preferences panel in Dreamweaver.
Dreamweaver calculates size based on the entire contents of the page, including all linked objects, such as images and plug‑ins. Dreamweaver estimates download time based on the connection speed entered in Status Bar preferences. Actual download time varies depending on general Internet conditions.
A good guideline to use when checking download times for a particular web page is the 8‑second rule. That is, most users will not wait longer than 8 seconds for a page to load.
Select Edit > Preferences (Windows) or Dreamweaver > Preferences (Macintosh).
Select Status Bar from the Category list on the left.
Select a connection speed with which to calculate download time and click OK.