The minimum time of closing an order is 5 minutes but other brokers has sometimes 10 minutes rules which is impossible to generate more profits.

I can possibly close any of my orders without the 5 or 10 minutes rules. If you do not want to interfer your trading strategies, do not choose that kind of broker though they only wants to protect your account against huge losses.

Some brokers have 5 minutes rules to follow to protect the account of their clients for getting huge losses.

Every broker has different rules to follow. You should ask your broker to know the rules about short-term trading.