What Should A Startup Remove When Its Pitch Deck Feels Too Detailed?

[wadejames]

Our team recently reviewed our startup presentation and noticed that several slides contained information that was useful internally but probably unnecessary for an investor. We have product details, customer insights, market research, and growth plans, but fitting everything into a simple story has been difficult. How do other founders decide which details deserve space in an early-stage deck? Would a pitch deck expert for startups help make those choices without losing the main business message?