uArm is not connected when using python sdk

[b0bmoi]

When using this sdk to control uArm Swift Pro, there are several problems:

1. It takes 30 secs to 1 minute for the arm to move.
2. The error "uArm is not connected" happens quite frequently, but uArm Studio works well at the same time.
3. The running results of the same test file(.py) are not consistent, sometimes it works just right, but sometimes the arm moves too fast, and the arm may replay the commands I sent in the previous run.

Moreover, these problems also exist when I run your pressure test file, so I don't know whether the python sdk can work anymore. If not, should I turn to use Arduino or something else? I need to control the arm with small latency and stability.