[1] Cpu usage, [2] stop when there is no change

Hello

I wonder whether someone could help me with the following issues.
(I am not sure if is OK to post 2 questions in one post.]

[1] I am using Max/MSP and SuperCollider together with OSC. In SuperCollider I am only able to see how much SuperCollider uses of the CPU, not how much both use. The activity monitor might be the best solution for seeing both.
I only want to have Max as the signal processor unit and SC to make the Synths. (The DAC in Max is not going to switched on, which might helps). Now, is there a way to make Max/MSP 4.6 a bit faster?

[2]

I also wonder whether there is an object which helps me with the following: If I do not receive a signal (bang) in the left inlet, of this desired object within a certain time (example: 2 sec) the object lets me know about it (with a bang perhaps). I want to use it with the mtr object, when it reached the end of the saved file, it stops outputting data, which should be an indication to stop a clock (made of counters).

Any help appreciated, thank you and all the best
Krisztian