Question / Help Video lag issue using imac internal web cam in obs but not in photobooth etc.

bewitchedhtx

New Member
Hello everyone, I am super new to this, I have an old Imac :
Model Name: iMac
Model Identifier: iMac9,1
Processor Name: Intel Core 2 Duo
Processor Speed: 3.06 GHz
Number of Processors: 1
Total Number of Cores: 2
L2 Cache: 6 MB
Memory: 8 GB
Boot ROM Version: IM91.008D.B08
Running Mojave 10.14.6
OBS: 25.06 (mac)

Issue is this, I am using my internal webcam to test OBS, and it always lags.
However, when I use the same cam for Photobooth there is no lag. its only when I use it as video source for OBS.
I have gone through this with friends who have used OBS, and also looked at videos and adjusted every setting i can think of, still lags the same every time.
I know the easiest thing would just get a new conputer, which I need to do anyway, im currently running my dj software off of a maxed out 2014 Macbook Pro, but hear its not ideal to run Serato & OBS on the same computer, so haven't tried that.
I have attached the log files as well. If there is any hope for me to use this Imac that would be super cool!
Thank you!
 

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