Ok I have installed the Microstats Hack and here are the results from both the Portal page and the Forum Page after visiting both.
Forum:
Page generated in 0.08181095 seconds (94.18% PHP - 5.82% MySQL) with 15 queries
Portal:
Page generated in 14.01297808 seconds (
99.77% PHP - 0.23% MySQL) with 12 queries
It seems my Portal page is always very near 100% all the time in the 99% range for PHP usage compared to my forum which stays around 90-94% all the time. I'm not sure what that means, but it could be the reason for the slow load times because the portal page is using less queries and MySQL usage than the forum. It just seems to be a PHP usage thing with the portal which is always extremly high.
Any ideas anybody?
What I can't understand is everything was perfectly fine and fast before. This problem with the portal page loading slow has just come from no-where yesterday.
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EDIT:
I've sorted it now, found what the problem was!
The problem was in the vBindex admin settings I had added an extra board ID to be displayed in the News center section on the portal, that I'd deleted yesterday but not removed the entry to grab posts from that board to the portal in the admin settings for the portal.
Phew!!!