WordPress has come-up since version 2.7 a feature called autosave. But the Problem is the interval is too short. WordPress saves the document you type every minute. This maybe a problem for blogs and websites that uses many plugins or users that have an internet connection that are slow or lap tops and computers that has a low memory. The consequence of this is either your computer and browser crash or it hangs. The reason for this is because the factors I mentioned above can obstruct the continuity of your work. So as a solution, we can modify the autosave frequency and interval in simple easy steps.
STEP 1: Go to your blog’s root directory and look for the WP-CONFIG.PHP file.

STEP 2: Open the file and look for the “define” constants. At the very bottom of the define constants add this constant called AUTOSAVE_INTERVAL to set your preferred time or interval.
define(’AUTOSAVE_INTERVAL’, 180);

STEP 3: Save the file then upload it on your root directory.
So that’s it. Enjoy the new autosave interval
