In absolute terms, they don't - both ICE and Electric vehicles are limited in acceleration performance by traction and tire technology at the top end. However, powerful small motors and instant torque do make it easier to build an electric car that accelerates quickly.

On the flipside, ICE cars have inherent advantages (mainly lower weight) in terms of top speed and especially handling, so electric cars that aim to be exciting tend to lean harder into the one thing they're especially good at comparatively and have developed a reputation for very good acceleration as a result.