Manual stacking works but very slowly now

[VoiceMemo]

Platform: Windows 7
ISP: Oceanic Time Warner Cable
Type of Internet Connection: Cable
Internet Connection Speed: 10mbps
Date & Time: 10/7/14 344 HST
Frequency: Always
Character Name: Voicememo
Race: hume
World: Asura
Main Job: THF
Support Job: BLM
Area and Coordinates: Beadeaux E7 but occurs anywhere
Party or Solo: Solo
NPC Name: N/A
Monster Name: N/A
Steps:

Manual stacking seems to be occurring slower than before. Before took about 1 second to stack, now seems more like 5 seconds to manual stack 2 stacks together.