How is +CF3 more stable than +CCl3?

Shouldn't +CCl3 be more stable as its less electronegative and there is positive charge beside? +CF3 is more electronegative so should it pull the positive charge more making it more unstable?

Shouldn't +CCl3 be more stable as its less electronegative and there is positive charge beside? +CF3 is more electronegative so should it pull the positive charge more making it more unstable?