Basically what the title says. If there’s over 100 line items, expecially closer to 200 and the cart page takes just about 20seconds for TTFB. Seems unacceptable for a system touted for enterprise use and e-commerce functionality.
Using default Luma theme, very few extensions. We’re currently profiling to see what’s causing the slowdown and seeing if there’s an easy solution. In the meantime decided to create a post in case someone else faced similar issues previously and wants to provide feedback.