Really???
Because personally, I keep having performance problems on all laptops I have. Don't try running on battery saving mode, seriously.
I stop counting the 5+ years old laptops that have to be upgraded, they can't watch a youtube full HD video in good conditions.
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Fun Anecdote: I had to trial an entreprisey SaaS solution not long ago. A coworker gave me the name and I opened the site on my laptop (on the move outside of work, just taking a quick look).
Their site froze my firefox for 30 seconds because these idiots put a high quality full screen video of a surfer in the background of the main page. Looks cool, doesn't it? https://www.wavefront.com/
Couldn't see the site. Had to be at work to read it, on my top end workstation, the video played smoothly there. Needless to say, didn't take the product seriously.