There's one easy fix for all this - play Kane as a #10 or a deep #9.
We were playing good football under Conte when Kane was playing deeper and acting as the target man in the near the center of the pitch. We also played our best football under Jose using a similar system but now with Conte, we have added wingbacks to help with the attack instead of having it just be the Son and Kane show.
For how shitty Kane has been this season, he's still the best when it comes to receiving the ball with his back to goal and holding up the ball. We don't have anyone else that can do this. Kane is also one of our better passers so he helps a lot with distribution.
More importantly, Kane playing deeper frees up space for Son and Lucas to run in to. We are most dangerous when our runners have space to run in to. When Kane plays too far up top, Lucas and Son inevitably have less space. I saw Lucas time and time again make a decent run against Chelsea, only to run into a sea of defenders that were crowding the area near the box. We need to pull Kane away from the goal because doing so, will pull defenders away from their box, leaving more area for our other players with more space to exploit.
The last couple of games, Kane has been playing much further up top and it's coincided with us looking like shit once again.