can freewheel as of bicycle improve performance of a motorbike ( if installed)?

[Deckard2020]

The rekluse clutch is popular with off-roaders. It is an automatic with freewheel. It isn't for mileage though, just to make the bike easier to ride through technical sections.

 

[priyu]

as petrol is getting costlier .i would like to improve the efficiency (performance) of the motorbike