I'm guessing you recently bought either a runabout or a lower-tier ship.
This is a display bug... it happened to me too when I bought mine. I "Had" to buy a Star Cruiser to "fix" the issue for me.
/sigh You and the OP need to learn to use the search feature. This bug has absolutely nothing to do with the runabout or any other ship. Your tooltip display values on engines and shields will display values for the LAST ship you purchased.
Buy an Assault Cruiser and then a Science ship and all your shield values will be extremely high AKA Science ship values.