Holmes, 993 calls are gone, and it's not getting better. Three Rust IPC traps in Tauri 2

The author shares their experience debugging performance in a Tauri 2-based application. After an optimization effort that removed 993 unnecessary IPC calls, the application unexpectedly became 2.5 times slower. The investigation revealed that the issue stemmed from the interaction between the Rust backend and the WebView. The author details three traps encountered when implementing IPC (Inter-Process Communication) in Tauri 2 and explains how non-obvious architectural decisions can lead to performance degradation. This article is useful for developers using Tauri to build cross-platform desktop applications, as it helps avoid common pitfalls when passing data between application layers and optimizing system resource interaction.