Optimizing picture file size in storyline projects.

I'm curious about managing picture file sizes in Storyline projects. I have 10MB image file and I'm trying to compress from online application such as https://jpegcompressor.com/. It compresses images efficiently and I want to know that do I need to optimize high-resolution images before inserting them into my project, or can Storyline handle the file size automatically? Similar to optimizing images for websites, should I optimize images beforehand to improve Story load times, or is it fine to insert larger images and let Storyline manage them? Thanks in advance for your guidance!