Black seems to be having great difficulty activating his K-side.

By which I infer "keeping the initiative". The intiative has certainly been firmly in White's hands since very early in the game.

Well, I wouldn't call it initiative as such. Usually initiative means that one player is "driving" the game, and the other has to respond to concrete threats (direct or indirect). Here White does not really have significant short-term threats, just positional domination. The tempi was needed just to play 22. e4 and deprive Black of all obvious counterplay (except for 23...b5, which loses outright).

Possibly Black was concerned about White's exploiting the Black queen's having to defend b6 and f7 simultaneously (24.Nxb6). Neither 23...Rd7 nor 23...Rb8 look particularly attractive either.

Agreed. This position is hard to play for Black, both objectively and subjectively (practically nothing to do but defend a visibly inferior position and wait). What I have tried to emphasize in my comments is the style of play which is focused on stopping all counterplay, except that which is beneficial for White.

problem with black is slow development. Still now, not every piece is active.

I enjoyed the game. Thank you.

That was a beautiful game! Thanks for posting it!  

nice game, congrats.

nice annonation