If you use Auto ISO, you need to watch the shutter speed.The wonderful advantage of mirrorless cameras is the silent e-shutter. One no longer has to cringe every time the shutter is released.
On my EM1-mk1, mode P, auto ISO, the shutter speed will drop all the way down to a STUPID LOW 1/13 sec, before the ISO starts going up. So ANY subject motion will result in a blurred image.
With a 1/13 sec floor before the ISO rises, in P mode, Auto ISO is effectively useless with the e-shutter on the EM1-mk1.
With the mechanical shutter, the Auto ISO floor is at 1/(focal length x 2), which is more reasonable.
So now I am extra careful when I use the e-shutter.
I sent Olympus a service message, that they NEED to fix the FW to fix this problem.