"Vision. He could just make his hand solid in Venom's chest or use his heat vision to peel the symtiote off his host."
how is visions speed"
Never really been the focus of the character but from compiled experiences I would say extremely fast.As in, as fast or faster than Venom."
The visions reaction time is slightly beyound peak human.
Therefore Venom is the faster in reaction time.
However the Vision does not simply use the gemstone on his forehead to projecta heat ray, it is also capable of being focussed like a laser and can be used to emit a light pulse to blind others.
I don't recall him often firing this beam when he was immaterial.
However he can ramp his density to 90 tonnes, be as heard as diamond and thus immovable/invilnerable to venow and then simply blast him with a heat ray rated to 20,000 deg. F. This would liquify the symbiote as at this temp even Colossus (at just 9000 deg F) would melt quickly.