That's simply not true. A 2019 MacBook Air has no trouble with any of these things. If you're having trouble with these, something is seriously wrong with your computer.
It’s more pronounced while recording but that’s the idea.
The Early 2020 MacBook Air is a joke from a CPU/Graphics perspective - even compared to other Intel Macs.
I still think something's wrong with your computer, as I have worked with multiple of that model and they weren't nearly this bad (even accounting for screen recording) - perhaps your cooling is worse?