It's usually best to wait, but in the present case I'd advise you to act without delay.

通常情况下最好是等待，但眼下的情况我倒是建议你立即采取行动。

youdao

Let's start working at once.; Act without delay.

说干就干。

《新英汉大辞典》

He urged the "rational" traditional leadership of the Brotherhood to act without delay to curb this tendency.

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Importantly, if the employee is underperforming, document performance, follow appropriate standards within the organization and act without delay.

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But I also want to urge all members of Congress to act without delay in the coming week to resolve their differences and pass this plan.

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