It the phone which is ment to lag or may be created to lag I just want to tell people that dont buy samsung’s old android smartphones like grand they lag a lot now with new tochwiz samsung is doing good.
Samsung j series is worth considering so buy a different phone this is not made to be bought it is very laggy and slow phone.
The phone even lag in normal conditions and the built quality is also poor it is made out of full cheap plastic so dont waste your hard earned money in this phone