I used to play DayZ on my old laptop with low specs, and tweaking the settings helped a lot. If you're struggling with visibility or aiming, https://ssz.gg/cheats/36-dayz-hacks-esp-aimbot-wallhack/ made it easier for me to enjoy the game without constantly getting wrecked. Just stick to low pop servers and disable shadows, that helped my FPS a ton.
Tip: On your laptop, set graphics options to “Low”, try 720p or lower resolution, disable any extra shadows or post-processing effects, and ensure you have updated graphics drivers Pojavlauncher app. This will help make the game run as smoothly as possible on your hardware.