But fear not, as there are a few tricks you can use to speed up Slack on your Mac. The culprit then for Slack slowness is the combination of the app demanding to be online and transferring lots of data in the form of messages and updates. What progressive means is that the app on your device is essentially a shell for the web app, which requires continuous internet connection to function. To optimally support this large codebase, Slack has opted to build what’s called progressive apps over native ones. Impressively, the app is able to run on iPhone, Android, Windows Phone, Linux, Windows, and Mac, as well as all major browsers for the web version. Slack’s principal weakness lies in its strength. Running the app continuously, in some cases, results in it devouring nearly 4GB of RAM. No wonder then that for most of us, Slack not only never reaches its full performance potential but can actually slow down our machines. By now, we almost involuntarily keep the Slack app open on our screens at all times. What used to be a swarm of internal emails has now turned into hundreds or even thousands of instant messages every day. Walk into any modern office today, and you’ll inevitably realize how deeply Slack has infiltrated our working lives. But to help you do it all by yourself, we’ve gathered our best ideas and solutions below.įeatures described in this article refer to the MacPaw site version of CleanMyMac X. So here’s a tip for you: Download CleanMyMac to quickly solve some of the issues mentioned in this article.

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