First, you may consider to upgrade memory from 8gb to 16gb. Then, perform a clean install of Windows from USB. After Windows settings customization, download and install AMD chipset driver. Restart machine and run Windows updates, installing everything including optional updates. Open Device Manager and check for any unknown device.  Download and install proper Dell drivers Open Microsoft Store library and run updates until no more update. Install your games, Fortnite, Valorant and test again. If the performance is satisfaction, start to reinstall apps, utilities and restore needed data.  If having issue, describe it here for troubleshooting. AWCC and Killer apps can cause performance issue if not properly installed or configured.  Allow Windows and MS store to install them at default settings and making adjustment to gain performance or thermal as needed later. For question, you can post it here instead of DM.
I bought Dell G15 5515 Ryzen edition (Ryzen 5600H and RTX3050) approx 1.5yrs ago. Mostly I play Valorant. Initially I used to get around 120+fps. But after some time, the performance got poor I was getting like 90-100 fps. Nowadays my fps is dropping to 30-60 and I get around 70-90fps, sometimes 100+. So basically, performance has degraded too much. Can anyone help me with this issue?
Need help with Dell G15 5155 Ryzen edition