I'm slightly concerned that this question is might not fit here but, as you will read, I have a lot of time on my hands...
Around release-time, Salesforce performance tends to plummet and right (in the midst of Winter 17 rollout), it's really dreadful again.
My normal development is using Sublime/MavensMate, but the connection to Sandboxes is so slow that it keeps timing out. So, I've fallen back to using Developer Console, but that is sometimes so slow that I have to fall back to the text edit function for classes in the setup pages.
And when I say slow, I mean up to 10 minutes to do one save of my code.
The only workaround I have is to work on a different pod (having trouble on cs22 at the moment). But that means making a new sandbox just for this, or delaying one project and switching to something else which happens to be on an unaffected pod.
Is there anything that can help to deal with these issues? Are some development tools more tolerant of the slowness? Is creating new sandboxes viable? Do SF support ever help with this? Is there anywhere where we can see the actual performance of SF. The "Trust" site always says everything's fine.