Not bad. Misaka’s fought Psychokinesis users
Her ability overpowers them, namely her Magnetism which has allowed her to catch and hold several buildings thrown at her, control a 60 million ton Iron Sand Kaiju, and stop the sword swing of a mountain destroying Saint.
So Misaka looks like she’s got the edge in power. What’s Riru’s speed? Misaka’s at least Relativistic in speed and reaction