Hi GM / Alex, this kind of concerning me. I have been playing smoothly without lagging issue (Windows 8) since Feb 2021. A few days early in March, my laptop Harddisk crash and i will have to change a new SSD Harddisk with Windows 10. Since then, i am facing lagging issue like intermittently. Sometimes i will need extra 1 hit for killing mobs, and pickup mesos or items will have delay of 1 sec. Could you please help? IGN: regenaldtan