https://www.theregister.co.uk/2019/09/19/optimising_cloud_performance/

Sponsored So, you’ve fork lifted a bunch of applications to the cloud, and you’re looking forward to happy years of low cost, worry-free operation, where you can provision oodles of computing power at the flick of a switch. Congratulations. But you didn’t really think it would be that easy, did you?

Cloud computing’s dark secret is that one size does not fit all, and it instead depends on the applications and the trade offs you are prepared to make. Dreams of fast, smooth access will fail to materialise unless this reality is understood and embraced. You don't want to roll out slow, clunky apps that leave users fuming. So, what are you going to do about it?