WebStorm performance is janky; it freezes every second or so

I'm on WebStorm 2025.3.1.1 and I'm finding it very janky right now.

Try:

• typing in the editor pane
• in editor pane or terminal, holding down the cursor key and letting the caret travel
• slowly drag any scrollbar

All of these operations are interrupted every 1000ms or so for about 100ms then carry on.

You can really feel it, all the time.

I've done the usual and invalidated caches, etc.

Debug details below:

WebStorm 2025.3.1.1
Build #WS-253.29346.242, built on January 8, 2026
Source revision: 45c13268926ea
Licensed to Dave Stewart
Subscription is active until April 14, 2026.
Runtime version: 21.0.9+10-b1163.86 aarch64 (JCEF 137.0.17)
VM: OpenJDK 64-Bit Server VM by JetBrains s.r.o.
Toolkit: sun.lwawt.macosx.LWCToolkit
macOS 15.5
GC: G1 Young Generation, G1 Concurrent GC, G1 Old Generation
Memory: 4096M
Cores: 12
Metal Rendering is ON
Registry:
  ide.balloon.shadow.size=15
  debugger.valueTooltipAutoShowOnSelection=true
  debugger.watches.in.variables=false
  debugger.new.tool.window.layout=true
  documentation.show.toolbar=true
  ide.experimental.ui=true
  llm.jcp.analytics.endpoint.url=https://api.jetbrains.cloud/analytics/events/push
  typescript.service.lsp.node.arguments=--max_old_space_size=8096
  eslint.additional.file.extensions=svelte
Non-Bundled Plugins:
  Dummy Text Generator (1.2.0)
  com.jetbrains.gerryPurpleTheme (2026.1.0116)
  ru.adelf.idea.dotenv (253.29346.379)
  quokka.js (1.0.532)
  org.jetbrains.junie (253.549.156)
  com.redhat.devtools.lsp4ij (0.19.1)
  com.jetbrains.restClient (253.29346.270)
  com.intellij.ml.llm (253.29346.331)
  org.intellij.prisma (253.29346.45)
  com.github.copilot (1.5.63-243)
  com.github.shiraji.findpullrequest (2.0.4)