Very sluggish text input (1000-2000ms per char) , frequent...

Bug Description
Very sluggish text input (1000-2000ms per char) , frequent hangs and API timeouts , all since Sun Jan 11th.
I'm running CC v2.1.5 in a gnome-termina prompt on Ubuntu 24.04 on a fast laptop with 32gb ram.
All good before yesterday

Environment Info

• Platform: linux
• Terminal: gnome-terminal
• Version: 2.1.5
• Feedback ID: 09a9bcc3-839f-451c-96d3-f99d40429413

Errors

[{"error":"AggregateError\n    at b7A.from (file:///home/adamvietnam/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:43:67419)\n    at rU.<anonymous> (file:///home/adamvietnam/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:57:10025)\n    at rU.emit (node:events:536:35)\n    at rU.emit (node:domain:489:12)\n    at bO1.<computed> (file:///home/adamvietnam/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:56:3436)\n    at ClientRequest.emit (node:events:536:35)\n    at ClientRequest.emit (node:domain:489:12)\n    at emitErrorEvent (node:_http_client:101:11)\n    at TLSSocket.socketErrorListener (node:_http_client:504:5)\n    at TLSSocket.emit (node:events:524:28)\n    at e$A.request (file:///home/adamvietnam/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:59:2132)\n    at process.processTicksAndRejections (node:internal/process/task_queues:95:5)\n    at async $S0 (file:///home/adamvietnam/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:4928:4222)","timestamp":"2026-01-12T16:28:49.781Z"},{"error":"Error: 1P event logging: 5 events failed to export\n    at wn1.queueFailedEvents (file:///home/adamvietnam/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:262:2038)\n    at async wn1.doExport (file:///home/adamvietnam/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:262:1195)","timestamp":"2026-01-12T16:28:59.576Z"},{"error":"Error: {\"stack\":\"Error: Failed to export 5 events\\n    at wn1.doExport (file:///home/adamvietnam/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:262:1297)\",\"message\":\"Failed to export 5 events\",\"name\":\"Error\"}\n    at WF0.error (file:///home/adamvietnam/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:1899:34862)\n    at ul1.error (file:///home/adamvietnam/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:256:10503)\n    at file:///home/adamvietnam/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:256:41528\n    at Bf3 (file:///home/adamvietnam/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:256:42074)\n    at file:///home/adamvietnam/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:257:20245","timestamp":"2026-01-12T16:28:59.578Z"},{"error":"Error: 1P event logging: 2 events failed to export\n    at wn1.queueFailedEvents (file:///home/adamvietnam/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:262:2038)\n    at async wn1.doExport (file:///home/adamvietnam/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:262:1195)","timestamp":"2026-01-12T16:29:08.365Z"},{"error":"Error: {\"stack\":\"Error: Failed to export 2 events\\n    at wn1.doExport (file:///home/adamvietnam/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:262:1297)\",\"message\":\"Failed to export 2 events\",\"name\":\"Error\"}\n    at WF0.error (file:///home/adamvietnam/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:1899:34862)\n    at ul1.error (file:///home/adamvietnam/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:256:10503)\n    at file:///home/adamvietnam/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:256:41528\n    at Bf3 (file:///home/adamvietnam/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:256:42074)\n    at file:///home/adamvietnam/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:257:20245","timestamp":"2026-01-12T16:29:08.366Z"},{"error":"Error: 1P event logging: 2 events failed to export\n    at wn1.queueFailedEvents (file:///home/adamvietnam/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:262:2038)\n    at async wn1.doExport (file:///home/adamvietnam/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:262:1195)","timestamp":"2026-01-12T16:29:17.987Z"},{"error":"Error: {\"stack\":\"Error: Failed to export 2 events\\n    at wn1.doExport (file:///home/adamvietnam/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:262:1297)\",\"message\":\"Failed to export 2 events\",\"name\":\"Error\"}\n    at WF0.error (file:///home/adamvietnam/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:1899:34862)\n    at ul1.error (file:///home/adamvietnam/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:256:10503)\n    at file:///home/adamvietnam/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:256:41528\n    at Bf3 (file:///home/adamvietnam/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:256:42074)\n    at file:///home/adamvietnam/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:

Note: Error logs were truncated.