In the recent update 1.18.30.04 the new RenderDragon graphics engine was reported. The problem is that this new engine causes poor performance on some devices, I realized it was RenderDragon because the same thing happens to me in past betas. And previously in the betas and official versions the FPS was kept at 60, now this official version gives me between 25 to 30 FPS the same as in the beta.