When I Opened My Eyes, I Realized That I Became a Genius With Sword Art눈떠보니 망나니 검술천재

Checked out first 4 chapters. Pacing is slow and author is probably young and angry teen who has just started learning the ropes of writting.
It's sort of okayish read but the plot is subpar and all characters act with bellow average intelligence as of chapter 4. Main reason I would drop this however is crap translation. The story is not good enough to suffer a crap translation. (chapter 1 was okay but 2 3 and 4 were badly translated)

It sure is a very descriptive one!