Rev mismatch????

[TGskyline]

After the car has warmed up after pressing the gas pedal and releasing (reving) the idle hesitates to go back down immediately matching the gas pedal this is Nissan skyline 250gt vq25dd I had a code p1110 intake valve timing control bank 1 but it disappeared after disconnecting the battery but it came back any help is welcomed I'll get video evidence in a minute 

[sonicii]

As with most throttle by wire setups, rarely will the RPM match the accelerator pedal exactly, but it shouldn't hang for too long either.

I'm not sure about the VQ25DD, but these symptoms on the VQ35DE can indicate a need to perform an idle air volume learn procedure.  They often come about after cleaning the throttle body and not performing this process afterwards.