Hey. I don’t know why it happens but there are lot of variations in the speed test. Yesterday after optimizing all my images and everything I bought the load time to 8.9 sec but in your ss it shows 3.4 Sec. I just checked it again on get metrix and now it’s showing 20.4 sec and I haven’t changed anything since yesterday because I was busy today. Take a look at this https://prnt.sc/tao2x9