Lost Ark on 21:9 monitor


I am considering going from 27 inch 16:9 1080p 60hz 5ms → 34 ultrawide 144Hz 1ms

My setup is: GTX1060 6GB , i5-7400 3,00GHz 16GB RAM

My question is: Shall I play it safe with 1080p 34 ultrawide, or I can run the game with more than 60 fps on 1440p ultrawide ?