Remote image renderer - error context deadline exceeded

I have a problem that when using grafana image renderer as a rendering tool for my grafana dashboards. It sometimes get server error messages. Maybe would someone advise what problem is causing this and how to solve it?
Log is here:

> t=2021-06-19T05:08:57+0000 lvl=eror msg="Rendering failed." logger=context userId=0 orgId=1 uname= error="failed to send request to remote rendering service: Get "\": context deadline exceeded.

Whereas at the remote image renderer - the error log is following:

{"url":"/render?deviceScaleFactor=1.000000&","stack":"TimeoutError: Navigation timeout of 60000 ms exceeded\n    at /usr/src/app/node_modules/puppeteer/lib/LifecycleWatcher.js:142:21\n  -- ASYNC --\n    at Frame.<anonymous> (/usr/src/app/node_modules/puppeteer/lib/helper.js:111:15)\n    at Page.goto (/usr/src/app/node_modules/puppeteer/lib/Page.js:675:49)\n    at Page.<anonymous> (/usr/src/app/node_modules/puppeteer/lib/helper.js:112:23)\n    at Browser.<anonymous> (/usr/src/app/build/browser/browser.js:170:24)\n    at (<anonymous>)\n    at fulfilled (/usr/src/app/build/browser/browser.js:5:58)\n    at runMicrotasks (<anonymous>)\n    at processTicksAndRejections (internal/process/task_queues.js:97:5)","level":"error","message":"Request failed"}

While I haven’t used the renderer myself, I would guess that the key issue is this:

The renderer couldn’t load the dashboard (including having data queries complete) within 60 seconds, so gave up.

Maybe it’s possible to increase that timeout? Or ensure that queries return faster?

I’ll try,
The default was 30s, already increased up to a minute.
Shall give a 120s, but I feel that something else is stopping dashboards to render, since they render ~50% of the time.