[Spartarus]

Clutch is dragging. You're still in the friction zone when your foot is on the clutch.

Did you ever adjust the pedal closer to the floor?

Did a previous owner ever adjust the pedal?

99% of the time, that's the problem. By removing travel from the pedal, you reduce the travel of the slave cylinder.

If both answers are no, you may be experiencing enough flex in the clutch fork to experience dragging. In that case, you may want to buy a stronger one.

Either way, I would bleed the system and check the pedal height first. If you have air in the line, the slave cylinder travel will be reduced.