All of my photos are pixelated when I try to edit them on very low resolution. Whenever I try to edit my photos it shows me big Squares (pixels) on mobile Lightroom application.

Since last couple of months whenever I try to edit the photos on my phone (Lightroom) It's very squareish and pixelated.

All the photos are fine but when I try to edit it goes In o this(screenshot attached)

I'm not sure what's the issue. Looking forward to the help.