Hi my friend. Well, this opinion is just of a newbie
but i think the reason why your phone lags so much is simply beacause you have got lots of apps to reduce lag itself (as seeder) and also tweaks and all that stuff (swap).
First of all setting swap in 256 mb its simply useless. With 10-20 mb of swap, enough. Otherwise your phone will get slow.
Secondly i would like to make a suggestion for you. Install Titanium backup, and make a backup of your important apps (such as whatsapp, Facebook,games etc.). Once you are done with it, transfer all your contacts to your SIM, or SD Card.
To end with this, i would recomend you to reinstall your old ROM (or just doing a reset), with the Kernel, and then restore all your apps/contacts.
I hope you understood me