Is it time to give up on Olympus?

Some perform better than others. It all depends on if Pany decides to put the money into the glass or cheap out by putting it into the software. I have the panny/ leica 25mm f/1.4 that performs great on my EM-5. I also have the panny 14-45. It performs way better on my G1 than on my EM-5.

It's not a matter of functioning, it's a matter of performance. I suggest you do some more reading.