From what I can see it looks very dry I don’t see any oil. Have you let the springs down and checked for wear. Not the best of metal in these, its quite soft compared to movement long ago. With the floating balance, make sure it is clean at the ends, normally jewelled at each end. A drop of watch oil in the jewels, then work the balance up and down a few time, the balance must be free. Clock oil on all moving parts this includes the pallet pins and escape wheel teeth. If the clock is cleaned and the springs, I think you will see a big change in the action of the chimes and balance.