Do you plan to play with or a Bluetooth controller ?
Ensure your iPhone is not in "Low Power Mode," which artificially caps CPU and GPU performance.
Modified IPAs from third-party websites are highly dangerous. Because iOS is a closed ecosystem, installing these files usually requires third-party enterprise certificates or jailbreaking. Hackers frequently bundle malware, spyware, and adware inside these files. Downloading them can compromise your Apple ID, personal data, and financial information. Performance Issues