There is a muscle and coordination barrier after a 10 year layoff. I took 16 years off. I used Scott Joplin rags to build up muscles in fingers 4 & 5. Magnetic, Paragon, Maple Leaf. You could also return to exercise books like Edna Mae Berman (the higher number ones) or Czerny etudes school of velocity. But EMB and Czerny don't have that many octave exercises, IMHO. Octave chord arpeggios might be another strength and coordination builder, although i didn't do that. I may some day. Czerny gets you the turn under skills, although scales can do that, too.
I repeated things I had done for fun, and after I had some strength back, the memory of the movements was still there. I also bought a couple of pieces that were way too hard for me and jumped in. I didn't make a lot of progress with working and all, but had a lot of fun during the 6 months I was in a motel with my piano and didn't have a house to repair. Later I had a rent house, but when I bought a house, practice time went way down until unemployment/retirement. I'm making a lot of progress now.