To locate the correct file in your Magento website's root directory, you can navigate through the following path:
app/design/fronted/[your-package]/[your-theme]/layout/
Once you reach the destination, open the file named page.xml
Look for the section with the code
<block type="page/html_head" name="head" as="head">
Within this block, you will find several <action>
tags that add default javascript files. Remove any unnecessary files that might be causing delays in loading.
If you are unable to locate page.xml in the specified path, try checking in the default theme folder. If that also doesn't work, you can fall back on searching in base/default/.