Sony A7s ii Slow mo 240 Fps

the 120 fps in the A7s ii is good enough but what if we can take this and make it 240 fps?? is it possible? in davinci resolve there is one setting called optical flow in the retime something like twixtor but easier in use in most cases this will work just fine but what about some more fast complicated and explosive movements ? thats why i took some shots with nikos partoglou doing his amazing parkour to see how optical flow can handle that shot with the sony a7s ii in 120fps mode shutter