I never have concentrated on win rate for intraday, risk management had me working on losing percentages. Risk on ES as much as 8pts and profit 1-2pts unless a loss is taken then next trade target is loss + profit. If volatility is so great for trade to hit loss, should be able give back loss plus profit.
80 - 20 Rule: 80% of my profits come from 20% of my trades. You don't need a high win rate to make money. Let the winners run.
Well, a low win rate can still be profitable if your risk-to-reward ratio is favorable and you're managing losses effectively. Quality of trades > Quantity of wins