Need tips for optimizing website performance

Hey everyone, I'm working on a website for my art portfolio and it's been running pretty slow. I tried some basic stuff like compressing images and minifying CSS, but I feel like there's more I could do to speed it up. I’ve heard about caching and lazy loading but not sure where to start. What are some effective techniques you all recommend for optimizing website performance? Any specific tools or practices that have worked well for you? Appreciate any insights!