The problem is not your English, it is the structure
You know your work well, so when someone asks for an update you try to include everything, in order. By the time you are partway through, the room has lost the thread.
Nobody is confused about your words. They are confused about which point matters most right now.
Signpost before you speak
“Three quick things. First, second, third.”
Naming the shape of what is coming lets people hold three points in mind instead of following an unstructured stream. It costs you one sentence and buys you their full attention.
Lead with the headline
“Headline first: we are on track. Details if useful.”
Busy stakeholders want the conclusion before the evidence. If they want detail, they will ask. Closing with a specific ask, such as “Where I could use help is the data access,” turns your update into a two-way exchange instead of a monologue.