First, I apologize if I walk you back through things you've already done, but I'd like to get an assessment of where you are so we can do some troubleshooting.
First look at your SSD disks and be sure they are formatted like this:
For best operation, they should show 1 MiB-aligned.
Give me a screen shot of the Tips & Tweaks page so I can see what you've 'Tweaked'.