Ever since I upgraded to the RTX 3090, this type of item lag is excruciating when there are floating items, items in item frames or large group of armor stands with items on them. I play on a professional server too and some areas are so full of item frames/armor stands for decorations that my game FPS will drop to the single digits. Items themselves are having visual glitches where half the item is rendered. I have tested this in private worlds, with or without texture packs, etc. and the results with FPS may increase but not much. Glad to see I am not the only one. I am releasing my HD texture packs in standard and RTX but making/streaming videos becomes difficult with this issue as well as even playing/building. Am hoping there is a resolve soon. Love the game improvements and advancements otherwise!
You can see some of it during a recent stream on Twitch: https://www.twitch.tv/videos/949656575
The issue is still very present with RTX packs (Defined PBR, Lumen RTX, my pack Kingdoms of Wallace RTX all face it and have supporters facing the issues every time they boot up the game). It even persist when switching off the RTX pack and then going to standard pack. Meaning, the super-imposed mer/normals are still present even when RTX is not active. All my research leads to the conclusion it has something to do with the Texture Atlas sizing and game caches. I attempted my pack by removing all 1.20 features and still faces the issues. Again, it only began with the 1.19.60 release and is still persistent even after this past week's update. This is very concerning for those of us creators of resource packs and those players using them as the overall game experience is very diminished. I am available to be contacted directly to assist in the process however I can. I appreciate all that is being done in the development process and am a fan, simply desire to get a proper resolution so the RTX experience continues to be a fulfilling one. Thank you!