Dealing with Frozen Ailment

I am running CI on a Chayula Monk and I am doing very well running T15s with almost no issue, except chill/freeze. For some reason if my character is hit twice by a cold attack I become frozen and it's all over for me. I have max cold resistance and I even put some %increased Frozen threshold in my jewels. All of my deaths in T15 maps have been from getting frozen. I know I can put on the thawing charm to try and mitigate but I feel like I am not understanding something about my defense and I would love to use that charm slot for something else, anyone having similar issue and know of ways to mitigate the ailment?