Strange Results

Hi all,

I’m fairly new to this tool and had some questions about odd results I’m seeing. I have run a series of tests on the same page withing a few seconds of each other. I have used the same settings, (browser, location etc) but each time I run the test I get different numbers. I can understand there being some small differences in the number of seconds, but in a lot of my tests I am seeing variances of 50% or more, e.g. speed index going from 2200 to 3800. These changes are occurring despite no edits being made to the pages themselves.

Can anyone help shed some light on this?