Simplified the calculation of screening speed
Simplified the calculation of screening speed

HongjianLi/USR-VS,HongjianLi/usr,HongjianLi/USR-VS,HongjianLi/USR-VS,HongjianLi/usr,HongjianLi/USR-VS,HongjianLi/usr,HongjianLi/usr