Honestly switching prayers are over rated except for your main spec weapon. Range is stupid accurate in general. He’s also fighting 45 def and lower, so range is hitting no matter what.
I alt-drag the potions box down to be vertically long. Or you can shift-right-click it and flip the axis. I also went into my Runelite settings (literally the plugin named Runelite) and changed the info box size to 25px and changed the overlay color to be transparent.