How would you improve website speed without changing hosts?

Hi y’all! I’m in need of someone who tells me how to improve the loading speed of my website. I already have WP-Rocket installed and switched hosts... but the loading time is still too long.

I would prefer a loading time of <1 second, and I am willing to do everything for it 🙏🏼

Website: www.dademamarketing.com

Do you have some advice? (Or can you help?)

Thanks! 🚀