'02 ZX2 Shifting Problem

Hello,

I have a 2002 Escort ZX2 5spd manual 91k . Lately, whenever I shift gears there is a large 'stall' when I let off the clutch. (I know how to drive stick well). There also seems to be a lack of power at lower RPM's. But especially when I shift it seems like the car almost dies for a split second unless I put the gas down far.

Thanks in advance for any help or suggestions.