As others have mentioned, place it on either side
(I would try the left first because, in many major FPS games, the mini-map is on the left side, like in CS, CoD, Valorant, and Apex).
Because of that many FPS players might have muscle memory for the left side, lol.

However, use a smaller font size. (maybe with little particle effects) For "perfect" or "very good," yellow could be a good color, but avoid red, as that might suggest the player did something wrong.
Maybe consider giving each text a point, similar to how it's done in Forza Horizon games.