200 rds per minute single shot rate, 1200 burst rate.

So firing takes 1/20 second, which leaves the rest of 1/3 second to aim at the next target. I don’t know if that is realistic.

If the drones fly 360km/h that leaves 60 seconds to take them down. (https://3dprinting.com/news/chinese-students-custom-3d-printed-drone-sets-new-speed-record/)

There is an additional rocket launcher with 60 missiles.

So alltogether handling 100 drones should be possible.