Yes, the probably best Extension is called:
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NitroPack - Complete Web Performance Optimization Framework
http://www.opencart.com/index.php?route ... n_id=12658
but it costs 110 US-Bucks, and it goes relatively deeply into the System, technically, wich would/could make it
harder, to add other Extensions, without a certain chance, to screw up somewhere.
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Unfortunately
I just KILLED TWO Shop Sites, containing some infos on this 'Performance THEME', by accident, by deleting two
wrong DB's, so, you'll have to wait until tomorrow, 'til I get the latest release installed and working again. I had some important information and links on one of those Sites, so, I have to create the stuff again first.
But you can search for
performance and
slow loading related Postings here, I explained my doings on this in several Places.
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But here are free Extensions, with different approaches, to increase performance in certain places.
Check em out, and read on, what their purpuse is. So, you get an idea, on, what's been waiting to be done.
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Opencart Turbo. Advanced Cacher. Lite. v1.2
http://www.opencart.com/index.php?route ... n_id=15400
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speed up your site lite
http://www.opencart.com/index.php?route ... n_id=13580
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PN DB Cache
http://www.opencart.com/index.php?route ... n_id=25388
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Free Page Cache for OC 1.5.X
http://www.opencart.com/index.php?route ... n_id=19023
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Full Page Cache
http://www.opencart.com/index.php?route ... n_id=10464
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Element Memcached Free (Memory-based cache) Caching for OpenCart
http://www.opencart.com/index.php?route ... on_id=8873
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Images width and height tags
http://www.opencart.com/index.php?route ... n_id=25032
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Cookie Free Image SubDomain Routing + Image height/width size
http://www.opencart.com/index.php?route ... n_id=25919
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Remove category product count
http://www.opencart.com/index.php?route ... n_id=10956
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More are here to find:
http://www.opencart.com/index.php?route ... speed%20up
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They partly do similar things, so, one
cannot just upload all of them, and hope, they will do their job.
Anyway, you see, there are different things to do, in different places. I expect you to know, what you're up to, otherways, it's possibly better to get a Pro around here, if you worry about a little coding. I only explain things,
I don't do them for others. It would be bad for those, trying to pay some of their bills with this kind of work !
I hit the bed now...it's 05.22 AM already here.
Ernie