Help with graphics issue.

I recently purchased old titles like abes odyssey and metal gear solid (PS1 emulations) from the PS store to play on my PS5, but the graphics are so insanely bad you cant even make out whats on the screen.

For example even the subtitles on the screen are so heavily pixelated and blurry its impossible to read them.

I looked at the gameplay videos on youtube and on youtube they look fine, they look the way they are suposed to look. But on my PS5 they are unplayable.

So my question is why do the PS5 store downloads of these old titles look so bad they are rendered unplayable? And how can I correct this issue?

For reference my TV is a 65 inch LG C4. I have tried all possible picture setting adjustments and used both regular and eARC HDMI ports but nothing changes the quality of the game.

Also every other game and function works fine, its just these PS1 emulation games that are so pixelated and blurry they are unplayable.