What are the ways to improve your WordPress site’s speed?

[HDLock]

Could you recommend me the ways to improve my WordPress site’s speed?
One of my colleagues suggested me these tips:
- Optimize images for speed on FLATsite (https://flatsite.com/)
- Use faster plugins
- Choose a theme that’s optimized for speed
So, i need to consult with you on what way is right for me and why.
Any inputs?

[Shindo]

Services from kvchosting.net and simplenet.io are Wordpress-friendly and inexpensive.
Any hosting company can brag about their uptime and reliability, but these people really deliver the goods. Their pricing is a great value. Their speed is rock solid. And they are just really good people to deal with.