proplem queues RB 1100ahx2 v 6.12

I have a serious problem on my 1100 RB AHx2 V 6.12’m using it just to do bandwidth control for my clients and static route, she is doing perfeitamento control, only in certain time the customer traffic drops considerably, is a 7 minutes limited to all customers with low traffic after a while the traffic back to normal, not existema high throughput in RB.
Someone is going through it? Can you help me?

Thank you!

example queues:

name=“teste” target=10.0.0.1/32 parent=none packet-marks=“”
priority=8/8 queue=10MB/10MB limit-at=10240k/10240k
max-limit=10240k/10240k burst-limit=0/0 burst-threshold=0/0
burst-time=0s/0s total-queue=10MB

type: name=“10MB” kind=pfifo pfifo-limit=5000
trafego.jpg