I use a thick superglue called “DAP RapidFuse”. The stuff is bulletproof, inexpensive, sticks to oil finishes, and sets up in about 15 seconds. Been using it for years and have never lost a fletch, even after days of poor weather. I’ve used Gorilla impact resistant CA glue with good results as well. Nobody got time for 30 minutes per fletch. There are far better glues out there and they’re available at your local hardware store.