I have seen these "bolt in a slot" type actions with levers to the left when brand new. In some, it appears that the top part of the extension rib, when bent up a bit, can allow the bolt to slip farther into the slot. On one, I bent the top of the extension rib back into its original position and the lever returned to a right of center position. Use a plastic hammer and pound on the top of the extension rib if it is a bit proud of the top of the action. Do the pounding with the barrels off the action and reinstall to check for fit and lever position. A few thousandths of bend should move the lever a noticeable amount.
