Is killmonger SP2 delayed?

After finishing a 5 hit combo and going for the sp2 seems to have a small delay in between....This small delay let's to have opponents a chance to block the whole Special attack 2....I have been facing this for a long time now..Is it normal?
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Yes, I forgot about og Daredevil, same here
My
My 4* vs 5*r5 debuff Imune medusa , all I used was special 2 ... there is no issue connecting , for me atleast
Don't chain it ,leave 1 second delay