[gt2]

I used to do it a lot at a FAANG and another time for an agency, and 1 per week was often. I had a track record of good hires apparently and they still only asked me to do it once a week at most. So I think you're doing it far too often.

As for advice on how to improve it-- my best advice is to see it as talking shop with a fellow coder. Let your guard down, discuss areas you both overlap. At least half the time I would need to be extremely patient while they attempted to contribute, but it's what you do as an interviewer to attempt to coax out the best in a candidate, similar to what _ah said in their response. Sometimes they come through sometimes not, which is the point of the interview of course! Good luck, and have fun meeting some new people. I've kept in touch with some, have learned a lot from others, and seen some around the office, I always enjoyed that aspect of it as well.