Skip to content

Desktop v0.0.4: Long startup, multi-second view transitions, and multi-second chat input lag on MacBook Pro M3 Max #440

@VargasDevelopment

Description

@VargasDevelopment

Summary

I'm seeing very poor desktop app performance on v0.0.4 on an Apple Silicon Mac.

Symptoms:

  • App takes a couple of minutes to become usable after launch
  • Switching between views (for example, Settings -> chat thread or chat thread -> Settings) takes several seconds
  • Typing in the chat input has ~2–3 seconds of input lag

This was reproducible enough that I wanted to file it as a focused performance issue rather than a one-off glitch.

Environment

  • T3 Code version: v0.0.4
  • OS: macOS Tahoe 26.3
  • Machine: MacBook Pro M3 Max
  • Memory: 64 GB RAM

Reproduction

  1. Fresh install of v.0.0.4 Desktop from DMG (no prior installs)
  2. Launch the desktop app
  3. Wait for the UI to become interactive
  4. Navigate between views such as: - Settings -> chat thread
    • chat thread -> Settings
  5. Click into the chat input and type

Expected behavior

  • App should become usable shortly after launch
  • View transitions should feel effectively immediate / near-instant
  • Chat input should respond without visible typing delay

Actual behavior

  • Initial startup takes minutes
  • View transitions take several seconds
  • Chat input has ~2–3 seconds of lag before text appears

Resource observations

I checked Activity Monitor while this was happening and did not observe obviously significant resource usage, which made the slowdown feel a bit surprising.

Additional diagnostics

  • Fresh install or upgrade?: Fresh isntall
  • Reproducible on every launch?: yes
  • Existing chats/config present?: Not initially, then after re-install yes
  • Approximate cold start time to usable UI: ~1 minute
  • Approximate delay when switching views: 10-15 seconds
  • Approximate input lag in chat box: ~5 seconds

Notes

  • This was severe enough to make the app feel difficult to use in its current state on this machine
  • I can provide a screen recording or additional diagnostics if helpful

Metadata

Metadata

Assignees

No one assigned

    Labels

    No labels
    No labels

    Type

    No type

    Projects

    No projects

    Milestone

    No milestone

    Relationships

    None yet

    Development

    No branches or pull requests

    Issue actions