Though there have been enough confirmations to establish that the delay is real. If your terminal is added to this category, you will not be able to reproduce this delay. Update : Some users have a Developer Tools category in the Security & Privacy preferences pane. You can test this by running the following two lines in a terminal: echo $'#!/bin/sh\necho Hello' > /tmp/test.sh & chmod a+x /tmp/test.sh So even if you write a one line shell script and run it in a terminal, you will get a delay! This is not just for files downloaded from the internet, nor is it only when you launch them via Finder, this is everything. This check for me takes close to a second. Spawning a new ProcessĪpple has introduced notarization, setting aside the inconvenience this brings to us developers, it also results in a degraded user experience, as the first time a user runs a new executable, Apple delays execution while waiting for a reply from their server. I say reduce, because I still do get some delays even with SIP disabled, but the system does overall feel much faster, and I would strongly recommend anyone who thinks their system is sluggish to do the same. This is tough medicine, but if you notice these delays, try it for an hour just to verify that indeed the issue is resolved by disabling internet connectivity.Īnother way to reduce the delays is by disabling System Integrity Protection. One way to solve the delays is to disable your internet connection. I have been struggling with this issue myself and have found several system operations that can cause these delays, which I will detail below. In episode 379 of ATP both Marco Arment and John Siracusa described noticeable delays and stalls after upgrading to macOS 10.15. Previous post: Creating a Faster Jekyll macOS 10.15: Slow by Design