I think it's a correlation vs causation type thing. Many Electron apps are extremely, painfully, slow. Teams is pretty much the poster child for this, but even spotify sometimes finds a way to lag, when it's just a freaking list of text.

Are they slow because they're Electron? No idea. But you can't deny that most Electron apps are sluggish for no clear reason. At least if they were pegging a CPU, you'd figure your box is slow. But that's not even what happens. Maybe they would've been sluggish even using native frameworks. Teams seems to do 1M network round-trips on each action, so even if it was perfectly optimized assembly for my specific CPU it would probably make no difference.

If only. At work I've got a new computer, replacing a lower-end 5-yo model. The new one has four times the cores, twice the RAM, a non-circus-grade ssd, a high-powered cpu as opposed to the "u" series chip the old one has.

I haven't noticed any kind of difference when using Teams. That piece of crap is just as slow and borken as it always was.