massive logo GET requests

Every frontend wordpress page request triggered multiple GET requests from the server IP to the logo url. I could retrace it to the function yasr_getimagesize from yet-another-stars-rating/includes/yasr-includes-functions.php which first calls “yasr_check_valid_url()”. This function triggers the first logo GET request. If this function returns true it triggers getimagesize() which downloads the logo image again. I hotfixed the problem by adding a transient cache call to the function, so it doesn’t check the same image URL with every single frontend page request since these requests made >90% of the whole website traffic and overloaded our webserver. Could you please fix this behavior?