Resolution of .psd in photoshop cc 2018 to save to pdf?

Question

Screen resolution

What is the permission to make documents in photoshop cc 2018 so that Automate -> Pdf presentation saves a presentation that does not lag when opened in google chrome?
Or maybe you need to somehow connect the layers? I tried to connect the pictures all in 1 layer, and the lines + text in different ones, and I tried the resolutions of 1920x1200 and 1280x720 and still, when opened in chrome, it freezes when scrolling.