Performance analysis

Hello community,

I am here to report something on the performance analysis in Firefox Developer Ed. It seems as if the pie chart for mobile gives me cached results once I already tried the tool. I have to close my browser again to not have the cached files. I noticed this because it gives me once 5 seconds loading for mobile and when I rerun the test 3 seconds. Page Speed Insights always gives me 5 seconds for mobile. Can you fix this?