By default the values are in scientific notations. Since mostly stresses and strains and even other values like velocities and pressure are in bigger formats. Therefore, using scientific notation there makes sense. But you are right, as in your case it doesn’t make much sense. I am not sure if it’s doable to automatically detect the value and put scientific notation to it if required. May be @bdaqui can elaborate this more accurately.
Furthermore, you can actually change the format of the values in local Paraview.
I hope this helps. If you have any question/s, feel free to ask.