慢熱的正確英文説法

慢熱 = Slow-to-warm-up personality
我的disadvantage係慢熱, 唔會同人好快熟同埋唔會即刻能就成為好朋友.
My slow-to-warm-up personality is a disadvantage. I am not a type of person who can easily buddy up with unfamiliar people.

Slow start.
My disadvantage is slow-start, as I have to take quite a long time to become buddies with some new friends.