We are forced to introduce limits

We use free services for image optimization.  For a while, that helped us to keep our plugin free with no significant limitations.  But recently, owners of free services used by Robin image optimizer asked us to reduce the load from our users. Otherwise, access to the services for our users was supposed to be restricted. In order to keep the plugin free, we had to add some restrictions. Those who suffer from such restrictions can use our premium server by supporting us in improving the service’s quality.