Recently, Safari Networking has, multiple times each day, spiked to over 100% CPU % (as shown in Activity Monitor), causing my fans to ramp up and necessitating my force quitting the process.

I'm kind of oblivious to stuff like this at the outset, but I'm pretty sure it began with Safari 14.

Is anybody else experiencing this, or is it perhaps a function of some website(s) I visit?

Thanks.

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In Memory of Harv: Those who can make you believe absurdities can make you commit atrocities. ~Voltaire