ErikReider
commented
4 years ago Apparently it's Mojangs new rendering engine that's a bit buggy. The game registers as a 2D game so the GPU never boosts to its 3D clock speeds but instead stays at the 2D clocks (800mhz for Navi). You can force the clocks to 3D clock speeds in Linux which solves some of the issues but not all. Same issue with the latest snapshot... It's not only the map but every map. I've noticed that spawning in a void map decreases the fps from 500 (1.14.4) down to 400 to 350fps (1.15.2) so it's not the render distance. I've heard somewhere that 1.15.2 has some issues with garbage collection so that would be the cause of the intense stuttering
ghost
byFaBcrack
Description of Issue
I have played a map called Parkour Pyramid before in the 1.14 lastest version of Minecraft Optifine I had and I didn't experience any big problems, just a few acceptable and playable FPS drops. Currently, the 1.15 is out and I´ve seen some improvements but when I tried the map again, a great but short FPS drop bothers me. I waited until Optifine 1.15 versions were out, but even with that, the issue happens. I don´t have any expectations that Optifine will fix this, but I would like to report my problem just in case you actually do it or at least to be considered.
Steps to Reproduce
It´s my first time reporting, but I'm leaving two videos with F3 description on screen, I guess all my laptop hardware details (I know it´s not powerful) that are shown there are enough. To reproduce this issue I suppose you have to own a similar hardware like me and run the Parkour Pyramid map (https://www.minecraftmaps.com/parkour-maps/parkour-pyramid). Then, jump in the place that is in the video (It´s one of the first jumps in the fist level).
OptiFine Version
OptiFine 1.15.2 HD U G1 pre13
Videos
OptiFine 1.14.4 HD U F2 Performance: https://youtu.be/0qJNqJnqW3Q OptiFine 1.15.2 HD U G1 pre13 Performance: https://youtu.be/vZRK5UIvZKc