I just recently bought an rx5700xt, ryzen7 3800x and an x570 board. After installing drivers my screen would flicker on and off unless i set my monitor refresh rate to 60hz instead of 144, in game i don't get higher than 50 fps at any variation of settings. The only time i could get it to 2000mhz is under stress tests and even then i only get 50fps at either 4k or 720p. Ive updated my bios, gotten all the drivers i should need, I'm not thermal throttling because the hottest i hit is 48 Celsius. Should I exchange the card? Is there a setting i can change? I don't know.