Win Speedup 2018 is a PUP or potentially unwanted program. It is advertised as a system optimizer and downloaded or bundled along with free programs without the users knowledge. They do not fully disclose that other software will also be installed.
Once Win Speedup 2018 is installed, it claims that several performance and security issues are detected on your computer. When you try to fix these detections, you will be obliged to buy its full version before proceeding. Any attempt to repair the said “issues” it claims opens up to a payment processing site.