Describe the Bug

When looking at the railroad tracks, the FPS drops considerably (from 50 FPS to 10 FPS). Changing the calculation distance did not improve the situation, but changing the drawing distance did. Furthermore, the more railroad tracks there are, the lower the FPS will be. So it must be related to the railroad track drawing. By the way, changing some settings and introducing fps boost mods as much as I tried did not improve the situation.

Reproduction Steps

1.set up minecraft
2.put railroad tracks
3.be near the railroad tracks
4.lag

Expected Result

Large lag

Screenshots and Videos

No response

Crash Report or Log

No response

Operating System

macOS Monterey 12.4

Mod Version

0.5.0c

Minecraft Version

1.18.2

Forge Version

40.1.0

Other Mods

flywheel-forge-1.18-0.6.4
forge-1.18.2-40.1.0
journeymap-1.18.2-5.8.5-forge
prefab-1.8.2.2
rubidium-0.5.3 or optifine_1.18.2_HD_U_H7

Additional Context

No response

make sure you are using instancing /flywheel backend instancing or batching /flywheel backend batching, test both and use what works better for you

I am on Windows 10 and can confirm the extreme lag being caused by train tracks.
The FPS goes from around 400-250 to 90-60

With any shaders installed it gets worse;
The FPS goes from around 180-100 to 45-25

Neither sliding down render or simulation distance helps.
Tried flyweel batching and instancing backend as well as turning it off. Virtually no difference at all.

Operating System
Windows 10 20H2

Mod Version
0.5.0c

Minecraft Version
1.18.2

Forge Version
40.1.0 or 40.1.20

Other Mods
flywheel-forge-1.18-0.6.4
forge-1.18.2-40.1.0 or 40.1.20
rubidium-0.5.3 + oculus 1.2.5 or optifine_1.18.2_HD_U_H6

use windows 11 to fix it I run 11 and this stuff doesn't happen to me

I am on Windows 11 client and can confirm it. The server is running on Ubuntu

FPS drops even if you do not look at the tracks. It is enough that they are in the render distance

I also noticed that curved tracks lower FPS more

Tried different flyweel backends. The result is the same

Operating System
Windows 11 22H2 22621.819

GPU
NVIDIA GeForce RTX 2070

CPU
Intel(R) Core(TM) i7-9750H

Mod Version
0.5.0e

Minecraft Version
1.18.2

Forge Version
40.1.85

Other mods
flywheel-forge-1.18.2-0.6.5
rubidium-0.5.2a
oculus-mc1.18.2-1.2.5

Same problem here. I'm on a Mac. However, I also have Garuda Linux installed on another partition on this same Mac and I don't get the problem at all on Linux. This is also on the same world and same server for both OS's.

Join the server on my Mac, FPS goes from ≈ 60, down to ≈ 5-10, only when I look in the direction of the tracks. Even if I'm on the other side of a solid wall, so the tracks shouldn't even be visible. If I'm facing that direction, FPS tanks. Turn away and reload chunks, FPS goes back to normal, until I look in that direction again.

Also tested this in single player. Downloaded the world and ran it locally, same issue. Just to confirm it's not limited to running on a server.

We have a decent number of tracks. They make a big circuit around our spawn build. Loaded the world on our test server, the moment I deleted the tracks, FPS jumped right back to normal.

Tried with and without Rubidium (and it's dependent mods). FPS was worse without it.

Computer
iMac18,3

Operating System
Mac OS 13.4 (22F66)

GPU
Radeon Pro 580

CPU
Intel i7-7700K (8) @ 4.20GHz

Memory
16384MiB

Resolution
2048x1152@2x, 1920x1080@2x

Mod Version
create-1.19.2-0.5.0.i

Minecraft Version
1.19.2

Forge Version
43.2.0

Other mods
Mod List.txt