Sorry, but is there a shelf life of each W10M build? Because it sure seems so.

[FrequencyCPM]

I believe my comment is relevant. I run production builds on a phone with 1GB of RAM that Windows Insider determined was eligible. The second production build brought many improvements so I uninstalled Insider Preview, but continued to get updates. The production build before .318 probably would have been fine to stay with, but after reading the fixes in .318 I decided to accept the production update. Everything went well for a while and then the same problems as others have stated started to happen. So, while I don't have the same phone as the OP, I had the exact same experience.

And on preview build .338 my phone has better performance and battery life than when I bought it, running WM 8.0.

 

[AbhiWindows10]

I don't accept the low end device line of thinking. My point is that things start out great and then tend to gradually get worse, or at least it seems that way.

I have a brand new Lumia 650 and even this new device aint free of issues !!

Photos app is terrible !
Deleting photos takes so long and most of the time it simply vanishes from the app but in reality File Explorer still retains the photos.

Many more silly little issues that just bug me.

And please, anyone who says, "Oh, just wait a little more, Redstone will fix things" - Just shut up..

I'm a die hard Windows10/Windows10Mobile lover and even i can't stand this

 

[Maurizio Troso]

I have a brand new Lumia 650 and even this new device aint free of issues !!

Photos app is terrible !
Deleting photos takes so long and most of the time it simply vanishes from the app but in reality File Explorer still retains the photos.

Many more silly little issues that just bug me.

And please, anyone who says, "Oh, just wait a little more, Redstone will fix things" - Just shut up..

I'm a die hard Windows10/Windows10Mobile lover and even i can't stand this

I got a 650 too, never had ONE single iussue you are sayin, both in Trheshold and Redstone. Are you sure you updated everything, o.s. firmware and apps as Microsoft sent to you?
Are you using a decent X10 SD card?