Mining pool and rewards plan with the difficulty going down ?

I have a gtx 1650 and i mine using T-rex on ravenminer with pps payout. I get about 10 rvn per day. I wonder if with the difficulty going down should i switch to pplns and which mining pool should i use with my 1650. I got 8.15 mh/s with the power set to 70% and a little of OC.

I saw a lot of people saying that their profits are 4x or 2x now. But nothing changed for me.

I tried 2miners and flypool but the difficulty was a bit high.

Thanks for the answers.