OneSignal Plugin Kills Server

Someone else having this same problem:

https://stackoverflow.com/questions/48330778/sending-onesignal-notification-crashes-server

This should be fixed. If you have a large list it crashes the server.

The same thing .. We use VPS and and have 19k subscribers in OneSignal.
Every time when post is published and Onesignal pushed notifications our server is down for 4-5 seconds.

I can confirm this issue. I’ve had to install the plugin because every time that a post is published, this plugin kills the server eating all resources

Same here. Can there be any fix in place? Such as sending to xx users at a time.

We run 4 different websites, we have the same issue.

Does anyone will ever fix this or we have to move to another plugin???

I can see the topic is 6 months old. So, what onesignal is doing?

The server load is happening due to either browsers loading your web icon or large image if it is hosted on your site. It can also be related to the service worker required for push being downloaded when receiving a push.

Below are are more details on the issue and some options on solving this problem:
https://github.com/OneSignal/OneSignal-WordPress-Plugin/issues/121#issuecomment-395621413

We have moved our support to Github:
https://www.ads-software.com/support/topic/announcement-changing-plugin-support-location/