Gonna give FolderEnhancer a try. I love everything about Infinifolder on my iPhone 4, but it does slow down the launching of the folder compared with the stock iPhone 4 without Infinifolder installed. From my experience, it's about a second longer lag upon the first launch of that folder with Infinifolder installed. (Had about 3pages of icons) If you close and relaunch again, there is no discernible lag. I assume that everything is residing in memory by the second time. Respring and you can see the initial lag again.
However, the lag reappears after a while. I guess after the iOS flushes it's cache or something.
Because of the lag, I was researching alternatives to Infinifolder and came across this thread. Gonna give FolderEnhancer a try. Hate to buy another app but I guess it'll be worth it until Infinifolder gets faster.
I admit I like the more native feel of Infinifolder. But we'll see how I feel after I give FolderEnhancer a run through.
BTW, I methodically installed each cydia app/enhancement in my quest to figure out the lag. And finally found that installing of Infinifolder was the culprit. This test was on the latest officially purchase Infinifolder as of today. The difference in launch of a stock folder is just shy of 1sec. Installing Inifinifolder doubles that time. If I were on an iPhone 3, I probably figure that ~1s lag is normal. But once you're used to the responsiveness of iPhone 4, the ~1s lag makes you feel like you're using Android or something. 😉 I can't stand lagginess once one is used to smoothness.