Mouse: P.I. for Hire on the Steam Deck: Performance, Settings, and Gameplay

Mouse: P.I. for Hire on the Steam Deck: Performance, Settings, and Gameplay

My Honest Review of Mouse: P.I. for Hire on the Steam Deck

There is nothing quite like the thrill of firing up a brand new game on the Steam Deck, especially when it already boasts that coveted Verified status right out of the gate. Recently, I got my hands on Mouse: P.I. for Hire, and I could not wait to see how it handled on Valve’s handheld powerhouse. As someone who loves diving into the technical nitty-gritty while still just wanting a smooth, uninterrupted gaming experience on the couch, I was incredibly curious to see if this highly anticipated shooter lived up to the performance hype.

Handheld gaming has come an incredibly long way, but every new release still feels like a puzzle waiting to be solved. Can it hit 60 FPS? Will it drain my battery in an hour? Does it look like a blurry mess? After spending some solid time with the game, I have got some honest thoughts, a few warnings, and the absolute best settings you need to tweak before you start your first playthrough. Let us dive into my personal performance review of Mouse: P.I. for Hire on the Steam Deck.

Out of the Box: Good, But We Can Definitely Do Better

When you first boot up Mouse: P.I. for Hire, the game automatically defaults to a 40 frames per second cap alongside medium graphics settings. Honestly? It is not a bad starting point at all. You will get a pretty decent, playable experience right from the jump, and it is easy to see why Valve handed it that Verified badge so quickly. However, if you are anything like me, you are a bit of a stickler for visual clarity. Almost immediately, I noticed a bit of annoying blurriness that took me out of the experience.

This visual fuzziness was especially noticeable when looking at characters and environmental assets further away in the distance. For a game with such a distinct, stylized visual flair, you really want those crisp lines to pop right off the screen. I knew right then that I was going to have to dive into the menus and do a little tweaking. Medium settings just were not going to cut it for my playthrough, especially when I knew the hardware was capable of pushing out a cleaner image.

The 60 FPS Trap: Why You Should Avoid It at All Costs

Naturally, my first instinct was to push the limits. We all want that buttery-smooth 60 frames per second on our handhelds, right? I uncapped the frame rate to see exactly what the Steam Deck could handle. At first glance, while wandering around inside some of the quieter interior areas, it actually felt okay. The movement was fluid, and I thought I had struck gold. But please, do not let that false sense of security fool you.

As soon as I got into heavy combat with lots of enemies swarming the screen, things took a drastic turn for the worse. The wattage began to creep up aggressively. I watched the power draw spike from a reasonable level up to 14 or 15 watts, and during the most intense, chaotic moments, it even hit a whopping 20 watts. When the Steam Deck is pulling that much power, you know the battery is practically crying out for mercy. But worse than the battery drain was the fact that the performance completely tanked.

The frame rate plummeted out of nowhere, introducing this awful jitter and severe input latency that made aiming impossible. I am not too proud to admit that I actually died during a major fight purely because the game got so stuttery I could not react in time. If you are hoping for a flawless 60 FPS experience here, you are going to be sorely disappointed. The trade-off in battery life and performance stability simply is not worth the headache.

My Recommended Steam Deck Settings for the Perfect Balance

After my tragic, stutter-induced death, I went back to the drawing board. I replayed that exact same difficult combat encounter at several different settings until I found the absolute sweet spot. If you want the best balance of visual fidelity, smooth gameplay, and respectable battery life, here is exactly what I recommend you configure before you play.

First and foremost, leave your frame rate cap locked at 40 FPS. I know 60 is tempting, but 40 FPS on the Steam Deck screen feels incredibly smooth and keeps the system from overworking itself into a stuttering mess. Next, bump up the graphics quality to the High preset. This completely eliminates that annoying blurriness I mentioned earlier, making the game look fantastic. You might think dropping down to Medium would save you a ton of battery life, but in my rigorous testing, it only saves an extra couple of watts. For the massive boost in graphic fidelity you get on High, it is one hundred percent worth sticking with the better visuals.

Finally, there is a crucial gameplay setting you need to change immediately: switch the crouch input method to Toggle. By default, the game requires you to hold down the right joystick to stay crouched. Let me tell you, clicking and holding a joystick while trying to maneuver and shoot is incredibly annoying and physically uncomfortable during long sessions. Toggling this simple setting will save your thumb and your sanity. You can thank me later!

Combat Nuances, Battery Life, and Final Thoughts

With my optimized settings applied, the game runs like an absolute dream. Even with a screen completely full of enemies, the experience remains incredibly stable. The wattage hovers comfortably between 9 to 14 watts depending on how chaotic the on-screen action gets. When we do the math on that power draw, it translates to some truly fantastic battery life for a modern title.

If you are playing on the beautiful Steam Deck OLED, you can expect a very solid 4 to 5 hours of gameplay on a single charge. If you are rocking the original Steam Deck LCD, you are still looking at a highly respectable 3 to 3.5 hours. That is plenty of time to get fully immersed in the world, solve a few mysteries, and blast some bad guys without constantly looking around the room for your charger.

One quick note on the gameplay itself before I wrap this up: the combat definitely takes some getting used to. There is no zoom or aim-down-sights ability whatsoever, which really caught me off guard at first. I kept pulling the trigger expecting to zoom in on a target, only to be left hip-firing. It forces you to rely entirely on movement, positioning, and raw crosshair placement, which adds a unique, slightly old-school challenge to the gunfights. Once you adjust to it, it is incredibly satisfying, but there is definitely a learning curve.

Overall, Mouse: P.I. for Hire is a fantastic addition to your Steam Deck library, provided you are willing to make a few quick adjustments before you dive in. Stick to the 40 FPS cap, crank those graphics up to High for the best visual clarity, save your thumb with the crouch toggle, and you are in for a genuinely great time. It is a visually striking, fun experience that feels right at home on a handheld, just as long as you play by its performance rules. Happy gaming, and enjoy your time out there on the gritty streets!

--
Not Reviewed
--
Metacritic
Join private investigator Jack Pepper on a guns blazing, jazz-fueled adventure in MOUSE: P.I. For Hire. MOUSE combines the charm of hand-drawn rubber hose animation inspired by the classic cartoons of the 1930’s with the adrenaline and action of an explosive first person shooter.
Release Date: 16 Apr 2026
Verification Status: PC , Steam Deck , Verifed
Developed by: Fumi Games
Published by: PlaySide