The parent commenter's problem sounds like it's third-party plugins rather than Live itself.
FL Studio also has a build for ARM, but it runs each non-ARM plugin in a wrapper which somehow uses an entire CPU core. After loading more than a couple of plugins I see something that is otherwise unheard of on my M1 Macbook - 1000% CPU usage and fans at full speed.
So I stick to running the app via Rosetta - higher-than-average CPU usage in general, but it means my plugins behave.
FL Studio also has a build for ARM, but it runs each non-ARM plugin in a wrapper which somehow uses an entire CPU core. After loading more than a couple of plugins I see something that is otherwise unheard of on my M1 Macbook - 1000% CPU usage and fans at full speed.
So I stick to running the app via Rosetta - higher-than-average CPU usage in general, but it means my plugins behave.