Roto Brush fail with MacBook Pro M1

Hi there,

I am experiencing a continuous lagging issue while using the Roto Brush on my 8GB Ram M1 MacBook Pro. Whenever I try to apply it on a clip, it stutters and fails to preview the footage making me unable to proceed. I have searched for this issue and tried every possible troubleshooting such as:

1. Reducing the RAM reserved for other applications and giving After Effects all the installed Rams.

2. Clearing the cache and the desk

3. Trying other versions of Roto Brush from version 1 to 3

4. Closing any app working in the background and leaving AF only active.

5. Using proxy footage and working with it.

6. Updating the AF to its latest version.

7. Tried to divide a 2-minute clip into fewer portions and try on everyone individually but I keep facing the same issue and can't use the tool as well.

And other workarounds as well but I keep facing the same issue, please provide me with a solution as I need to use this tool ASAP.

Thank you.