This is certainly one of the most frustrating things in modern UIs, although I’m not sure what it’s called I feel like it’s common enough for someone to have coined a name by this point. There are a few ways I can think of to deal with it:

1. Have very close to 0 latency. Clearly not always doable.

2. When in the process of searching, indicate to the user that the results aren’t fresh and new ones are coming - grey out the current options for instance.

3. Analyze how long the new results have been shown for and treat very short durations differently. If the new results have been up for 2ms, it’s not possible for that to be your desired intention.