Hi All
The issue with shift/CTRL modifiers for height adjustment is a known issue that we are looking into; however in this case it appears to be worse with some types of mouse than others.
In regards to using CTRL to adjust the field of view, we no longer apply a default key binding for the FOV modifier, as the key binding for 'CTRL' (note that it is just 'CTRL' for this keybinding) was needed for another function.
However you can change the keybinding via the in-game Control Settings (click on the system menu on the top toolbar, then click on settings, then click on 'control settings'). You will need to remove the key binding from the other function that is using CTRL (from memory it's a few lines above or below the FOV Modifier control) by selecting it, then pressing ESC (this will clear the selected keybinding).
Regards