Svelte LSP initialization and responsiveness severely degraded in large projects

8/10 High

The Svelte Language Server Protocol takes ~1 minute to initialize, causes IDE freezing, and runs out of RAM in some cases. Autocomplete is very slow or non-functional for both markup props and script tags. Affects VS Code, WebStorm, Neovim, and Zed.

SvelteVS CodeWebStormNeovimZedLSP
Category
dx
Workaround
none
Stage
debug
Freshness
persistent
Scope
framework
Upstream
open
Recurring
Yes
Buyer Type
team
Maintainer
active

Sources

Collection History

Query: “What are the most common pain points with Svelte for developers in 2025?”4/5/2026

It takes about a minute for Svelte LSP to initialize. Our laptops are overheating badly. Autocomplete works very slowly or doesn't work at all. For some colleagues, Svelte LSP even stops working because it runs out of RAM.

Created: 4/5/2026Updated: 4/5/2026