How to Clear Cache in Apple® Safari Browser
As time passes Safari performance can become very slow while you are browsing.
Here is a quick fix to help you clear out the cache and improve performance in Safari.
How to clear Cache in Safari on a Mac
Open Safari
Select the Safari drop down Menu
Select Preferences.
Click the Advanced tab
Click Show Develop menu in menu bar.
Select the Develop drop down Menu in Safari
Then Select Empty caches.