Your TTFB (Time To First Byte) score is the best indicator of your web host's performance. TTFB measures how quickly your web server transfers the first byte of data from your server to the client's web browser. Any score up to 300 ms is generally considered a decent TTFB. Depending on the location of the server, this score usually varies from place to place.
If you are interested in checking your score, visit the KeyCDN Tools website. Plugins are another reason behind many slow wordpress sites. When you install and activate a plugin on your Wordpress site, a code is created that adheres to the theme or function file of your site. This means that more plugins will create even more code, which will need to be loaded every time someone tries to access your website.
Therefore, my advice is to identify the plugins you should have for your site and keep them to the basic minimum. I am currently using only 18 plugins on my website. Every plugin you add to a WordPress site can increase site latency. You can turn plugins on and off on your site to see if they improve loading time.
For more information on activating and deactivating plugins on WordPress, see Activating and deactivating plugins on WordPress. Coding a WordPress theme can also contribute to site latency, especially when using a third-party theme. To see if your theme is slowing down your site, try changing it. For more information on changing the theme, see Change my WordPress theme.
SiteGround: I would consider SiteGround to be the fastest basic hosting provider for WordPress. Changing a topic is a huge job, so you'll really want to diagnose the root cause of your slow speed before investing a little time on topic changes. For optimal performance, it's important to keep your WordPress site up to date, including its plugins and themes. I first thought or assumed it was my PC, but I don't have that problem with any other websites, including my other Wordpress sites.
I've tried everything, like using the WP total cache plugin and optimizing the database, but the website is still slow. Most WordPress websites are hosted by a cheap hosting provider that stacks ten thousand other websites on top of each other on the same server. But this negatively affects the page load performance of your WordPress site by increasing the number of HTTP requests. If one, or a handful, of those sites experiences a traffic spike, things will slow down for everyone else.
You can also turn off Pingbacks and Trackbacks for your WordPress site, which often try to search for links pointing to your site from other blogs, or notify other blogs when you link to them. There are some plugins on the market that will optimize your WordPress database for you without the risks of doing it yourself. But if you run a business from that WordPress site, then better hosting will more than PAY the extra cost. Resizing an image can reduce the size of your image file several times, which helps your WordPress site load much faster.