Humans currently when you consider loss in image can lower this figure, take in up to 160kbit's of equivalent of computer data.
How much we put out is more like up to 100 bits if we used our tong''s quicker that could be upped to 300-500 bits/s
How ever if we trained up on small fast moving pixel colour data blocks on the screen tuned to a personal fit data representation and tuned in with these blocks as programmer blocks with first hand gestures and moving the fingers slightly fast and moving this issue over to mimicking the effect in the brain fast in order to interact with and program data blocks at an equivalent data rate of 700Kbit download and upto 12Kbit upload.
Elon musk is right the data rate we can work with computers at does have an impact on how fast we can lay down human creative work but to achieve those higher data rates humans would need to learn new tricks and be able to work their unconscious deeper processing with their conscious focus up to a higher optimal over a few generations. How ever just getting the human upload level to 700 bits and the average download rate closer to the current max would dramatically improve the situation quite a lot.
Chips in the brain won't necessarily get round the issue of the human needing to be up to scratch in the first place.
Might I note we take in slightly more information from interacting with reality which is clearer and of a more dynamic complexity.
Humans do a lot more than a computer slower than a computer. even imagining your greatest most detailed invention in your head is not working with much data at once it's that wide field general intelligence of the unconscious that is where the heavy data processing is done. evolving the conscious relative to this is a lot easier than trying to directly tap this potential with chips in the brain and far deeper pattern recognition.