The popular and useful mod Harvest Flora has one small issue: Harrada roots will tank your game's performance for every mesh within your camera's view frustum.
As that mod is now 16+ years old, I doubt there is hope of someone discerning what is seriously wrong with the mod's harrada .nif files. The mod page itself lists a "harrada fix" in version 3.0.1, but whatever is causing this massive drop in performance was not fixed (in fact, their changes may have amplified the issue).
This mod simply reverts the harrada root flora records back to vanilla Oblivion meshes and scripts, allowing you to enjoy Harvest Flora without losing hundreds of FPS in planes of Oblivion.
As that mod is now 16+ years old, I doubt there is hope of someone discerning what is seriously wrong with the mod's harrada .nif files. The mod page itself lists a "harrada fix" in version 3.0.1, but whatever is causing this massive drop in performance was not fixed (in fact, their changes may have amplified the issue).
This mod simply reverts the harrada root flora records back to vanilla Oblivion meshes and scripts, allowing you to enjoy Harvest Flora without losing hundreds of FPS in planes of Oblivion.