Any Ways to Boost WordPress Performance Speed?

[Madagaskar]

What ways can you recommend me to boost my wordpress performance and speed?
The thing is that one of my co-workers draw my attention to FLATsite.com (https://Flatsite.com/) static wordpress site generator.
Would like to know your views on it? Have you tried it?
Any other suggestions, please?

[BIsquit]

Wordpress-friendly plans are available form kvchosting.net and simplenet.io.
Their customer support is simply outstanding. Quick to be summoned, they solve your problem in no time, and they even offer a little personality. I’m overall satisfied.