in a 70 star run, how much time is saved on emulator compared to console? (I couldnt find it on google so im asking here)

I mean all the lag and also some loading times. For a rough estimate, you can compare records.

Comparing records wouldn't be an effective way to estimate how much time EMU saves. By the time people are at a level to get the record, they almost always switch to N64. This is shown in the current N64 and EMU records. N64 record for 70 is 46:59. EMU is 48:24.

That's fair, I guess I didn't take that into consideration. Thanks for catching me on my bs :)