Tommy Emmanuel is next level guitarist. Don’t try this at home guys. I’ve been playing/noodling on guitar for years. Moreso since stay at home and since tennis is not possible much due to arthritis in feet and back. Keep active as much as you can physically but more importantly mentally.The parallels to tennis are many.
I'd suggest concentrating on good form and forgetting about speed. Get good at being able to strum a few notes [C, D, G, & A] and leave the Carlos Santana shredding for later.
Which video are you watching?
Don't try this at home [yet]:
The first time I heard his rendition of Classical Gas, I literally stopped what I was doing and just stood there transfixed.