devtrackers.gg
The 10 second lag spikes are an integrity change.
If you're using Runelite please disable the Quest Helper plugin or use the Vanilla client and see if you're still experiencing the lag spikes please!
you're right, I went through each one and its the "optimal quest guide" plugin. Thanks!
Dam RL
Glad to hear it's resolved it for you for now! I believe Runelite are working on a fix :)