So, I tested disabling the ads every nth post and my test user was able to confirm that her latency issues went away. I’m going to leave the nth ads off this week and see if there’s a difference in pvs per session on Windows/Chrome users.
I sent a note to @neil to see if we could consider capping the number of ads that would load per topic. My hunch is that as users scroll through topics quickly, it could impact performance on some browsers.