It is a tough one to fine tune.
To small a time limit and you will get snap guides all over the place, too long a time limit and you will have to wait all the time.
There is also a keyboard shortcut to instantly place the snap guide regardless of the time setting.
It should be the Q or ' (tild) key - possibly both will work.
Move the mouse to the edge or node and then press the shortcut.
Barry.
One of the forum moderators.
Versions 6.5 to 27
i7-10700 @ 2.9Ghz, 32GB ram, GeForce RTX 2060 (6GB), Windows 10
Lenovo Thinkpad - i7-1270P 2.20 GHz, 32GB RAM, Nvidia T550, Windows 11