Strange, I don't see the performance degradation at all. May be too much activity from you in the Chatter forum? :)
>It is certainly not one second delay issue. When it gets slow it may take couple minutes just to open welcome (or any other) screen completely, i.e. couple times I had time to wait and check how much time would be needed. In other cases, I just close it and come back later.
If it's not broken, fix it until it is.
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