I can't control the mycobot m5 in ubuntu with 10-20HZ control cmd

[Black0Moonlight]

Describe the bug
I can't control the mycobot m5 in ubuntu with 10-20HZ control cmd

To Reproduce
Steps to reproduce the behavior:
I use this method to move and check time delay:
def move_mycobot(self):
# self.mc.sync_send_angles(list(np.degrees(self.robot_joint_positions)), 50, 0.1)
last_time = time.time()
self.mc.send_radians(list(self.robot_joint_positions), 50)
dt = time.time()-last_time
print(dt)

And dt is like this:
1.5237412452697754

1.5245559215545654

1.5268266201019287

Why this huge delay?

Expected behavior
In user cook book, it is said that command frequency can be 10-20HZ, and I want to control the move of robot arm as real time as possible.
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2 关于参数
Q：mycobot280-M5通讯频率是多少呢？
A：10-20Hz。
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Desktop (please complete the following information):

• OS: Ubuntu 20.04
• Browser chrome
• Version 3.6.0

[anla-xu]

Please provide the firmware version you are using. We recommend you to install atom v6.5 and pymycobot < v3.6.0

[Black0Moonlight]

Please provide the firmware version you are using. We recommend you to install atom v6.5 and pymycobot < v3.6.0

Thank you. I use firmware with: robot version 7.0.0 and basic version 2.3.0. I also flashed atom v6.5, but I found no difference.

[anla-xu]

The normal communication frequency should not exceed 100ms. Please test it again using atom v6.5 and pymycobot v3.5.9. There is no problem.