When large skies are loaded into memory (their alpha is turned beyond the threshold for the first time) the game has large lag spikes, presumably because of the GPU memory usage.
Possible solutions:
Load the texture into memory at resource pack load time
Compress textures better when uploading to the GPU, so this isn't as impactful
When large skies are loaded into memory (their alpha is turned beyond the threshold for the first time) the game has large lag spikes, presumably because of the GPU memory usage.
Possible solutions: