Why is battery draining so fast and my phone has become comparatively slow?

[Windows Central Question]

why is battery draining so fast????and phone has become comparitively slow

battery draining terribly fast and even home screen not changing.

 

[sundawg#WP]

Meaning your live tiles aren't live? I'll assume you've restarted the phone (if not, cue to do so).
Is there anything of note in the Battery Save app? i.e. some app with tons of background usage or something?

Look at the store -> downloads and then swipe over to history and see what has been updated since you noticed this. Maybe uninstall anything that updated after you noticed this.