LG UltraGear 45GX950A-B OLED 5K2K gives blure fonts hard to read espetialy in HDR mode

Hi I have dell pro max plus rtx5000 i connected LG Ultra Gear 45GX950A-B OLED 5K2K and got bed image quality in 5k resolution. I have tried via usb C- inlet's graphic and HDMI NVIDIA graphic.

NVIDIA works a bitt better-got native 5k resolution with 165hz. Both both ways font is very hard to red. Eyes tired after just moment.

On my old think-pad 7 years i could not get 5k but only 1440p but text quality was better.

I tried turned hdr on is even worse. I tried sdr and tweaking monitor settings but i did not get docent results?

Someone had similar issue? Any fix??