Windows 10 Mobile on older hardware: how is it?

[Windows Central]

You can force Windows 10 to install on older Windows Phone 8.1 smartphones ? but should you?
When Windows 10 Mobile launched, Microsoft controversially decided not to include support for older Windows Phone devices because of how CPU intensive Windows 10 Mobile was. Throughout the preview program, users using older Windows Phones had constant complaints with slowness, laggyness and general bugs that were not helped by the aging Snapdragon S4 processors.

Full story from the WindowsCentral blog...

 

[duga7777]

The short answer: 2 GB RAM or more: go for Windows 10 Mobile. Less than that, stay on 8.1.