For a voltage divider I use a 10k 20 turn screw trimpot. I set the pot to 20 to1 approx 500ohm to 9k5. I tried fixed through hole resistors and it took 30seconds or more for the number to settle, I don’t have the equipment to try SMD resistors.
The voltage value settles immediately with the pot do you recon I have too low a pot and should have chosen a 100k pot?
Kendrick