70xxx 还没消息 12/18 received STEM OPT

请问OPT Extension申请是不是更慢一些？
12/18 received 之后一百多天毫无动静
前几天online inquiry，收到回复说currently under review by an officer.
也注册了myuscis，一样是received case
不知道还需要等多久啊？
着急拿到EAD换新工作+搬家{:4_85:}