Multicam - how to make it go faster? 13 cameras

Hello,

So as usual, I have to edit a concert shot with 13 cameras. I made the proxies, even on a lower resolution than the default option, and exported all of them on the C drive, which is an SSD drive. I set up the multicam, and it's absolutely uneditable. What could you suggest I should do? Usually, 10 cameras work well with this workflow, but now it's impossible.

Any advice would help.

Any advice would help. Thank you.

This are my specs:

Processor AMD Ryzen 7 3800X 8-Core Processor 4.20 GHz
Installed RAM 32.0 GB
Videcard: Nvidia 1060
Windows 10