Codeigniter on PHP paas

I have used Cloudways PaaS for managed hosting of my CodeIgniter based website. They are really good, as in I can deploy my app on server in just few minutes. Their stack is also really great for performance improvements since it includes Apache, Nginx, Memcached, Varnish, PHP-FPM. I can also enable CDN, free SSL, and HTTP/2 on my website in just one click.

Now for you questions:

1. There is no load balancing on Cloudways yet, but there is vertical scaling and if you have hosted on KYUP using their platform then there is Auto Scaling as well.

3. They don't have their own email hosting, but you can buy an addon for that.

Not too sure about the second question.