Default [Q] I cant create SWAP on MT6577 S3 clone.

Hello,

last year i bought a S3 clone named I9300c ALPS (below are detailed specs), i ROOTed it and i want use RamExpander app to create SWAP file to speed up my phone. But i got the message that i cant create SWAP file on my kernel. I have only 512mb RAM, so my phone is working veeeery slow.

Is this a possible to create SWAP file using other app from Google Play store, or will i never do it on my kernel? I cant find any custom ROM for this phone so I'm pessimistic.
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