How do you stop Suno from adding long intros with the Cover feature?

I'm using the Cover feature on one of my own songs, and it's driving me crazy. Even when the original starts immediately (with no intro), Suno keeps generating a long instrumental intro before the vocals.

I want the cover to follow the same structure as the original, not invent a new intro.

Has anyone found a reliable way to prevent this? Are there any prompts or settings that actually work, or is this just a limitation of the Cover feature?