Screen Blinking with AMD OC

Good day.

I've been having some problems with my monitor and the OC of my gpu. I own a RX 570 4GB and I overclocked it without problems(kinda). When I game and the gpu enters to stage 7 of the memory clock I can play without issues, but when I play some games that don't need a lot of gpu power (Hollow Knight, Hades, etc) I get random "blinks"(like the monitor is having problems with the refresh rate) or rarely, artifacts. I did some testing and this games stay between stage 0 and 3 of the memory Clock.
I haven't touched the Vram clocks, only the memories. I know that it's not a gpu problem since it can run perfectly my OC on the later stages, so I'm guessing is something between the configuration of my monitor and the drivers, but I can't figure out what.
I'm leaving some images of the config and the display settings, if anyone can help me figuring out if I should customize some of the specs of my monitor or if it's something else. Thanks in advance.

SPECS:
CPU: Ryzen 5 3600
RAM: 2x 8gb Crucial Ballistix 3200mhz
GPU: Gigabyte Rx 570 4gb Gaming
MONITOR: LG Flatron m2380a (Full hd lcd)

Display Settings (Amd Software):
Timing Info - Horizontal - Vertical
Total - 2080 - 1111
Display - 1920 - 1080
Front Porch - 48 - 1083
Sync Width - 32 - 5
Polarity - Positive - Negative

Interlaced/Progressive - Progressive
G.Pixel Clock (KHz) - 138660
G.Refresh Rate (Hz) - 60.0031
HDMI Link Status Monitoring - Enabled
Current Link Settings - Not Available

  Gpu OC.png (Size: 43.31 KB / Downloads: 13)