Ridiculous drop rates for Ragnarok M Eternal Love and solution? (07-02-19)

I have been putting my ipad on for sometime like for a day or so. I find my drop rate is insanely low. So yesterday I accidently left the screen record on and it seemed switched off the game because I suppose it ran out of memory. Today got back into the game again and it seem like the drop rates have increased so much. I suppose they drop the drop rate after playing certain amount of hours or maybe just have to relogin?