My Lumia 925 is starting to LAG !

[MAHER_Central]

Hi everyone !
I noticed this last two weeks that my Lumia 925 is lagging. Some apps crash or take too much time to lauch. I don't want to reset my device. What can i do ? I used 7/13 GB. Will delete stuff help ? Thx

 

[oviedofreak82]

Are you running 8.1 & Cyan or 8.1 DP? If the latter, than probably because of the missing firmware. Also, did you install any new apps recently that maybe causing it to slow down?

 

[Guytronic]

Seeing my 925 on DP 8.1 including the latest updates turning sluggish also.
No crashing just rotten battery time and slow animations and resuming.
Was running very well until this past weekend.

It's got to be a poorly written app I've installed I'm thinking.
Ah well I'll do the reset ... done it before. (*note to self back-up first)
:/
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Update edit:
Did the phone reset...
I ended up not fully restoring the phone from a back-up because of stalling problems.

Battery time seems slightly better.
Lag is gone now so I believe and uninstalled app left something behind that was causing a bit of chaos.

I guess for better battery performance I may have to use location sparingly.
Keeping NFC and Glance off in addition to not using live folders help quite a bit also.

I'm wondering if live folders were trashing the battery because of all the mini live tiles going?
Still weird that lagging started about 4 days ago and went downhill from there.