Were you asking for help or demanding it? lol
Is your motherboards BIOS up to date? What motherboard are you running?
Do you have the latest AM4 chipset drivers installed from AMD.com?
Have you tried running the program called DDU to remove all past and present GPU drivers of whatever types of GPU's (AMD,Nvidia,Intel) you have ran on this install of Windows?
Is this a clean install of Windows with this hardware? .. or did you carry it over from a previous build?
Is your Windows install up to date?
What speed is your RAM actually running at? (Task Manager>Performance>Memory)
Are you overclocking anything?
How are your GPU and CPU temps?
What resolution do you play at? low, med, or high settings? Have you tried different graphical settings at all in game or in Radeon control panel?
What type of drive is PUBG installed on?