One more thing here. If you see strategy with so many entry rules, that does not mean this is a good strategy. Even the opposite thing. We are looking for strategies that have fewer entry rules.
We have now the Normalizer at EA Studio which indeed reduces the trading rules. This way the Expert Advisors are faster, calculated easier, and the chance to have a delay in the entry are less.
When we backtest trading strategy we want to make it as fast as possible. Especially when we trade 100s of them simultaneously.