I Have found that gifs invoked by the menu are more responsive on mobile if I remove the “$frm_type[$frame] = ‘img’;” tag from the frames page.
With the img tag in place the gifs are cropped and locked (immovable). Without the img tag images are cropped but movable, to facilitate seeing part of the image off screen on initial display.
You can experience this by checking my menu. The #2 & #3 items in extras “Metro Radar” & “Metro Radar1” are coded both ways. The drawback is that the images are no longer “centered” on wider formats (PC, or Tablet).
This was on Android:
Samsung S8