How can we maintain a good risk to reward ratio in scalping?

Usually scalpers get in & out of trades very quickly. Their target is to catch momentum I guess. Sometimes their trades last just few seconds or a few minutes.

So IMO, scalping shouldn't be linked with risk to reward ratio.

In Scalping, you cannot maintain a good RRR, because its done quick and you cannot set a specific stop loss or target as you do in a normal trade.