Sup guys/gals haven't posted in awhile. The car has trouble starting like it cranks real slow (like if the battery was drained). I can finally get it to turn over, it revs fine when not in gear. Then when I take off it's usually fine until vtec, then it feels like vtec kicks in real hard, but isn't really going anywhere. I don't have any smoke coming out of anywhere, nor do I have any check engine lights? What can these be symptoms of?

Thanks in advance

 

bump, come on guys.