Loading PNG images took {0:0.00%} of the CPU on the UI thread. There are {1} PNG images loaded in the specified time range. ...

Loading PNG images took {0:0.00%} of the CPU on the UI thread. There are {1} PNG images loaded in the specified time range. PNG images are decoded in software. JPG images are decoded using hardware on the device. You should use JPG images and migrate the decoding operation to a background thread.