For macos users who are comfortable using Terminal there's an easy way to adjust the length of time, say 10 seconds, between hovering over a link and when the preview pops up. This can be applied to specific applications, such as Safari, or globally.
Open Terminal.app from the Utilities folder, enter either of the following lines of code at the prompt and hit the RETURN or ENTER key:
Global change:
Code:
defaults write -g NSInitialToolTipDelay -int 10000
Per application change:
Code:
defaults write com.apple.Safari NSInitialToolTipDelay -int 10000
The time argument is expressed in nanoseconds, thus "10000" is the equivalent of 10 seconds. Adjust up or down as suits your taste.
You may need to restart the app or device for changes to take effect. (Off the top of my head I don't know what the corollary operations are for iOS, Android or Windows devices are.)