Reduce margin on large display screens

Hi, I am having issues with how my pages are displayed on large screens (like 5K 16/9 monitors). In fact, the margin is way too big (left and right) and doesn't keep the proportions I see on my MacBook Pro. It causes unpleasant placement of my texts // photo slider on my home page. https://bastienchilloux.com Please tell me how to solve this. Screenshot : https://ibb.co/Yds1Kmr