Can threads be called mutually exclusive?

[HanHoRang]

An anomaly was discovered during functional testing and is being addressed.
As you can see from the picture below, it is judged that the number of time calls per IP is limited.
(The test was performed with 100 http proxies and set the threads to 20.)

As a way to bypass this, I would like to configure and call a thread that uses the IP proxy of group A for 5 minutes, and then configure the thread using the IP proxy of group B for 5 minutes.
After this, I will alternately call the A or B groups. Maybe there is a better way to bypass this?