well nice to see others are noticing the oem bat is 330cca, to answer your question yes your car will take a while to turn over with that battery in cold weather, don't get me wrong it will start up just will take a while. I replaced my battery with interstate mtp 35 if you live in cold weather battery contains more lead than acid so you are all good. I would stay away from the optimas, I have an optima in my current accord and previous civic however they changed manufacturing to mexico and quality took a dive so they have been dropping quite often these days. I had considered getting an agm but I was feeling extra cheap so I went for the best compromise. I always recommend you stick with a battery made by johnson controls over exide but thats just my own opinion if you wanted a good cheap battery walmart everstart and costco kirkland signature are all made by johnson controls just check the battery and it will tell you who makes it. Also pay attention to manufacturing date. As a side note some of the walmart everstart's are also made by exide.
Group 35 battery
If you change battery you will have to make the car relearn fuel trim.
any questions pm me.