Now that I'm doing longer rides more often, I've been thinking that my handlebars are too wide for me. I finally measured them and they are 46cm c2c

. This is on a 51cm bike and I'm 5'4". I'm not sure who thought this was a good idea but this seems exceptionally wide for this size bike.
I like being able to breath easily so I don't want to get something too narrow. Also, I'm not all that happy with my handlebar shape and was looking at the FSA Omega Compact. Would a 42cm c2c be good on these? I know they're angled out slightly towards the drops so the hoods would be closer to 40cm which I think is about what the generic formulas would put me on.
Any experience with the Omega in terms of size? I just can't believe how wide the ones that came on the bike are.