I think you have ruled out the problem of Internet speed?

In terms of hardware, I think if you turn on the computer normally and can start and run the software normally, there shouldn't be any big problems.

That means there is a problem with the software. When you use Feiteng software, what software are you using to listen to music and watch videos, or are you using a web browser directly?

Is this the case when you are not using Feiteng software?

The next anti-virus software guard has hardware detection and task manager in the tool. You can check the CPU memory page occupancy rate. If there is no problem, use hardware detection.

If it still doesn’t work, check the hardware driver to see if there is any conflict.

Hope this helps.