Advice for active FPGA forums

I am currently using an Intel Cyclone V, a 5CEBA2F23C8N and a LPDDR2 memory.
The reason for this initial choice is due to a Terasic development board that used a Altera/Intel high end Cyclone V device with a functioning LPDDR2 IP. Some code was breadboarded here.
Unfortunately I can't get the LPDDR2 IP to work on my PCB. I get errors and I have given up.
So I have made my own interface. This 'can' function fine without error, but as the design has become more complex I now struggle for the memory to function at 225MHz clock speed, being the minimum speed I need for a 32bit DDR2 memory. I can select clock phase for the internal clock, memory clock and DQS strobes.
I'm struggling with setting clock speed and appropriate timing where the timing simply fails, despite setting the options to max speed. The delays are simply too many ns.
In short I am throwing in the towel with a view to reconsidering alternative architectures and FPGAs. I should be able to reuse most of my code.
I was wondering if anyone could recommend a generic type of forum that could assist with feedback. Yes I know there are AMD and Intel FPGA sites but they are very specific to those makes.
There is comp.arch.fpga but that's pretty much defunct.
Any suggestions?
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Mike Perkins
Video Solutions Ltd
www.videosolutions.ltd.uk