Is the performance of mobile web on mobile devices related to different platforms (IOS/Android) or different browsers (UC/QQ.)?

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on IOS, the performance of the same set of pages in Safari is different from that in UC browsers;
is this related to the operating system or browsers?

Mobile-page Mobile-browser Mobile-web Mobile-web-Development

Nov.08,2021

is essentially related to browsers. Browsers of different systems must be different

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