Help understanding ash skill improvements

Somewhat new to the game and I decided to try a coglin build with ash as the God. I got a curse that is supposed to improve my weapon skills however from what I can tell it is not boosting the rate in which they are learned and does not seem to have boosted their base skills.

Could someone help me understand how this game mechanic is supposed to work?

Thanks!

If you press _ it should show you the base level of the skill. The base level should be lower than the enhanced skill level, which is currently showing.

very helpful thanks! Though disappointing I am only seeing an improvement of 0.4 on one of my skills with a single cursed artifact.