Makes me wonder if its because i haven't upgraded it to Catalina?? All of a sudden, not gradual, it is nothing like it was when first had it.
Stop using Chrome.
There are other alternatives...
Brave browser built upon chrome has all you need I thinkAs soon as they have some extension help I will. FB pixel helper. Few others.
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Example - on a plane - Wifi and chrome running FB ad manager - 95% down to 54% in about an hour... 😡