Remember that the trait of a genius is to be able to take highly complex ideas and explain them in easier terms. Similarly, the readability of your writing improves when you take a more simple approach. Conversational tones are easier to understand than academic ones but obviously bear in mind your target audience too. You don't want to be too informal, as it may seem unprofessional.
Tools like
Grammarly and the
Hemmingway App are a great way to improve your writing.