We are aware of some servers experiencing issues lately and we are currently investigating the cause for that.
Regarding bug #2 it does seem related to another issue we are currently investigating as well of being unable to harvest or damage entities during certain times in some servers.
Regarding performance issues, we are actively tracking this problem in this thread:
Any info you could provide that we asked in that thread would be highly valuable (including dxdiag and video feedback with stat unigraph enabled).
Regarding the overheating issues, that seems to point out to some issue with the system configuration, as @Multigun kindly pointed out.
And we do not ignore complaints nor feedback.
Happy new year.