Data has always been pretty good at acting emotionally. It's just that he doesn't accept it as being "true" emotion - he doesn't get the expected satisfaction out of it.
Is he being overtly critical? Does he have fundamentally false ideas about what emoting should feel like? Or is he emotionally crippled in comparison with humans or Lore, indeed unable to feel the satisfaction that normally would be there? Any and all of these three ideas could be the product of deliberate programming that the chip would reverse, without actually adding anything tangible, or satisfying Lore's expectations.
The connectivity was never connected to the chip in dialogue, but one does wonder. Perhaps it was a variant of the technique Soong used in "Brothers" to summon his sons, appropriated by Lore for more sinister use? And perhaps Soong did involve the chip in the technique somehow?
That is, if the chip merely stores a few lines of programming that open Data's mental locks, it might be considered a mere data container in general - and Soong could have used it to store all sorts of data relevant to his Data-upgrading plan, including his personal notes, the recall program, and a few choice words to his sons?
Timo Saloniemi