If you are determined to use Smart Game Booster, or if you suspect you have a malicious version installed, here are the steps you should take to ensure your safety.
Some versions do not install persistence mechanisms; they run once, steal your data, and then delete themselves to avoid detection. How to Identify and Remove the Threat Smart Game Booster Virus
While not a virus, some users in communities like Reddit's r/lowendgaming view it as "bloatware" or "scamware" because its optimization functions can often be performed manually through Windows settings. The Danger: Fake "Smart Game Booster" Malware If you are determined to use Smart Game