So set the max-limit of the simple queue higher than 2Mbps.
Can you describe the problem you're having in more detail, and add output from the router?
What are you trying to do? Both describe it in words, and show the relevant exported configuration you applied. What did you expect that configuration to do? How did you test? What did you expect the test to result in, and what did you get instead? And so on.
Specific answers require specific questions. When in doubt, post the output of "/ip address print detail", "/ip route print detail", "/interface print detail", "/ip firewall export", and an accurate network diagram.