Snap package installation method results in a laggy ghostty, whereas apt/deb comunity package is smooth

[2lian]

Issue Description

When installing ghostty using snap install ghostty --classic ghostty feels sluggish and laggy (low fps and stutter).
However, installing using apt and a Debian package ( https://github.com/clayrisser/debian-ghostty/ ) works perfectly.

(Honestly, it works now fine with apt, I am not looking to solve the issue, I just want to share it, in case it can help)

Expected Behavior

snap install ghostty --classic should offer similar performance to other installation method.

Actual Behavior

sudo apt install ghostty has better performance.

Reproduction Steps

1. Install snap install ghostty --classic
2. Start ghostty and move the caret around with the arrow keys
3. Compare fluidity with default terminal
4. Ghostty feels much worse than default terminal
5. Uninstall snap remove ghostty
6. Install: https://github.com/clayrisser/debian-ghostty/
7. Start ghostty and move the caret around with arrow keys
8. Compare fluidity with default terminal
9. Ghostty feels great at least on par with the default terminal

Ghostty Logs

No response

Ghostty Version

# Snap version:

Ghostty 1.1.3

Version
  - version: 1.1.3
  - channel: stable
Build Config
  - Zig version: 0.13.0
  - build mode : builtin.OptimizeMode.ReleaseFast
  - app runtime: apprt.Runtime.gtk
  - font engine: font.main.Backend.fontconfig_freetype
  - renderer   : renderer.OpenGL
  - libxev     : main.Backend.io_uring
  - desktop env: other
  - GTK version:
    build      : 4.14.2
    runtime    : 4.14.2
  - libadwaita : enabled
    build      : 1.5.0
    runtime    : 1.5.0
  - libX11     : enabled
  - libwayland : enabled

# Apt / Debian version

Ghostty 1.1.3-dev+0000000

Version
  - version: 1.1.3-dev+0000000
  - channel: tip
Build Config
  - Zig version: 0.13.0
  - build mode : builtin.OptimizeMode.ReleaseFast
  - app runtime: apprt.Runtime.gtk
  - font engine: font.main.Backend.fontconfig_freetype
  - renderer   : renderer.OpenGL
  - libxev     : main.Backend.io_uring
  - desktop env: other
  - GTK version:
    build      : 4.18.6
    runtime    : 4.14.5
  - libadwaita : enabled
    build      : 1.7.6
    runtime    : 1.5.0
  - libX11     : enabled
  - libwayland : enabled

OS Version Information

24.04.3 LTS (Noble Numbat)

(Linux only) Display Server

X11

(Linux only) Desktop Environment/Window Manager

GNOME 46.0

Minimal Ghostty Configuration

theme = rose-pine
font-size = 14
window-width = 84
window-height = 21

keybind = ctrl+shift+w=close_surface
keybind = ctrl+shift+i=new_split:up
keybind = ctrl+shift+k=new_split:down
keybind = ctrl+shift+l=new_split:right
keybind = ctrl+shift+j=new_split:left
keybind = ctrl+shift+equal=equalize_splits
keybind = ctrl+shift+down=goto_split:down
keybind = ctrl+shift+up=goto_split:up
keybind = ctrl+shift+left=goto_split:left
keybind = ctrl+shift+right=goto_split:right
keybind = ctrl+shift+n=previous_tab
keybind = ctrl+shift+m=next_tab

Additional Relevant Configuration

I tested this by moving the carret in NeoVim and nano. Comparing side by side with the default terminal. Likely unrelated, but I use a 240Hz display (also because of this maybe I am more likely to notice lags).

I acknowledge that:

• I have reviewed the FAQ and confirm that my issue is NOT among them.
• I have searched the Ghostty repository (both open and closed Discussions and Issues) and confirm this is not a duplicate of an existing issue or discussion.
• I have checked the "Preview" tab on all text fields to ensure that everything looks right, and have wrapped all configuration and code in code blocks with a group of three backticks (```) on separate lines.

[00-kat]

I have a feeling this is because that specific deb package is built with more optimizations than the snap package (which makes it break for other users → #5673). I would also personally recommend against using that package because it is literally an opaque pre-built binary shoved into a deb package. (They've also done some git nonsense to get Mitchell to show up in the contributors list, which is extra scummy.)

[Angxddeep]

Still this (https://github.com/mkasberg/ghostty-ubuntu) can be trusted?