Performance Instability During Large Data Transfer and Long Chat Sessions

Bug Description
The CLI will Jump and shudder if I paste a lot of data or claude is outputting a lot of data especially in longer chats.

Environment Info

• Platform: darwin
• Terminal: Tabby
• Version: 1.0.58
• Feedback ID: dcf3ef53-4cd1-44c3-8ce4-ec9779c1b712

Errors

[{"error":"Error: Command failed: security find-generic-password -a $USER -w -s \"Claude Code\"\nsecurity: SecKeychainSearchCopyNext: The specified item could not be found in the keychain.\n\n    at genericNodeError (node:internal/errors:983:15)\n    at wrappedFn (node:internal/errors:537:14)\n    at checkExecSyncError (node:child_process:882:11)\n    at execSync (node:child_process:954:15)\n    at F7 (file:///Users/<anonymous>/.nvm/versions/node/v22.14.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:844:5958)\n    at file:///Users/<anonymous>/.nvm/versions/node/v22.14.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:756:48658\n    at Q (file:///Users/<anonymous>/.nvm/versions/node/v22.14.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:653:14408)\n    at LW (file:///Users/<anonymous>/.nvm/versions/node/v22.14.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:756:46369)\n    at eK (file:///Users/<anonymous>/.nvm/versions/node/v22.14.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:756:45236)\n    at dB (file:///Users/<anonymous>/.nvm/versions/node/v22.14.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:756:51284)","timestamp":"2025-07-23T18:43:00.240Z"},{"error":"Error: Language not supported while highlighting code, falling back to markdown: \n    at pW (file:///Users/<anonymous>/.nvm/versions/node/v22.14.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:1470:1184)\n    at file:///Users/<anonymous>/.nvm/versions/node/v22.14.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:1470:912\n    at Array.map (<anonymous>)\n    at mY (file:///Users/<anonymous>/.nvm/versions/node/v22.14.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:1470:903)\n    at uNB (file:///Users/<anonymous>/.nvm/versions/node/v22.14.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:2382:7441)\n    at tN (file:///Users/<anonymous>/.nvm/versions/node/v22.14.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:65:19804)\n    at h_ (file:///Users/<anonymous>/.nvm/versions/node/v22.14.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:67:42569)\n    at b_ (file:///Users/<anonymous>/.nvm/versions/node/v22.14.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:67:38118)\n    at kT (file:///Users/<anonymous>/.nvm/versions/node/v22.14.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:67:38046)\n    at EL (file:///Users/<anonymous>/.nvm/versions/node/v22.14.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:67:37900)","timestamp":"2025-07-23T18:43:01.976Z"},{"error":"Error: Language not supported while highlighting code, falling back to markdown: \n    at pW (file:///Users/<anonymous>/.nvm/versions/node/v22.14.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:1470:1184)\n    at file:///Users/<anonymous>/.nvm/versions/node/v22.14.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:1470:2172\n    at Array.map (<anonymous>)\n    at pW (file:///Users/<anonymous>/.nvm/versions/node/v22.14.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:1470:2143)\n    at file:///Users/<anonymous>/.nvm/versions/node/v22.14.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:1470:2059\n    at Array.map (<anonymous>)\n    at pW (file:///Users/<anonymous>/.nvm/versions/node/v22.14.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:1470:2048)\n    at file:///Users/<anonymous>/.nvm/versions/node/v22.14.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:1470:912\n    at Array.map (<anonymous>)\n    at mY (file:///Users/<anonymous>/.nvm/versions/node/v22.14.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:1470:903)","timestamp":"2025-07-23T18:43:02.204Z"}]