why do companies make us use shitty laptops?

Maybe it’s just my company but I’m using a shitty HP that takes an age to start up and warm up. With a shitty trackpad that means I have to use an external mouse.

Compared to my personal MacBook it’s a miserable experience. I would be much more likely to do some light work on the train if my laptop worked well.

Can anyone relate? Seems like a silly place for a company to cut costs.