title: SSL slow. Establishing secure connection taking too long
body: <p>I have a dedicated server with <code>256GB RAM</code> <code>6 CPUs (12 Threads)</code> on Hetzner, and it is located in Germany. I have <em>CENTOS 7.5</em>.  <em>EA4</em>.</p>
  
  <p>My problem is with SSL. Every day for about <em>2 hours</em>, we have <em>40 requests in one second</em> and finishing requests takes about <em>20 seconds</em>. Non-SSL takes <em>0.5</em> or less. <a href="http://viber.ge/index.php" rel="nofollow noreferrer">Here</a> is an example.</p>
  
  <p>From <em>13:00 to 15:30 (UTC+4)</em>, SSL requests take the most time. The problem is evident when you open <a href="https://banners.analyticson.com/img/h0r2aZAVOb.jpg" rel="nofollow noreferrer">this link</a> with SSL and without.</p>
  
  <p>I have WHM available. I've noticed <strong>ModSecurity</strong> and wonder if it might be the problem. I've applied most of the settings provided <a href="https://www.codeclouds.com/blog/cpanel-whm-how-to-increase-your-vps-server-speed/" rel="nofollow noreferrer">here</a>, but there is not much regarding SSL.</p>
  
  <p><a href="https://i.stack.imgur.com/tK1x7.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/tK1x7.png" alt="enter image description here"></a></p>
  
  <p>In case certificates are the reason for all of this:</p>
  
  <p><a href="https://i.stack.imgur.com/b25SG.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/b25SG.png" alt="enter image description here"></a></p>