Would it be possible to add a 'Max. camera distance' slider to either camera settings or to the graphics options?
This would allow the player to have more control over the game camera and I believe it would lead to a better experience for players.
There could also be separate sliders for battle and tactical map camera for even more control on how someone chooses to play.
If there are concerns on the impact of the camera moving further away, you could add a small popup that shows when an user moves the slider to say something like 'Increasing the maximum camera distance may adversely affect the game's performance.'.