This is a great question, and one with many answers, some simple and some complex. The first thing you should look at is your server, what your website is hosted on is the foundation for everything. Here are the top four items (in our opinion) to speed up your website:
For an in-depth look into the subject check out:
20 Powerful & Effective Real Estate Marketing Ideas
Our best Elementor kit to date?
Is Real Estate 7 the Best Website Builder with IDX for Agents and Brokers?