in a attack photo, ser-fiq caculate score is vary small , and in some paper ,i can not reproduce the results

[newcat22]

SER-FIQ quality score of image 2 is 2.973152674691055e-05， and in a normal phote score is 0.73。
a attack phote means a image is hard to find a face。 my question are as follows:
1 i want to know , if a image can not detect a face, use ser-fqi is available ?
2 i have use anthor version, the model use resnet50， and it appears normal, a attack phote score is 0.23 . It is in line with expectations. Can I use resnet50 instead of arcface ？