I have been a service provider on speed optimization and most of the time do these on chrome for checking results. Now i have client website [https://apktrendy.com/APK Trendy] on which i have been working on. The speed results are on chrome are excellent all are 95+ but my client is from Australia and uses Firefox browser on its phone when i submitted him the work he checked that than his website is loading very slow especially the images they taking too much of time. I am clueless now why this happening as this fine my side