update from base

[yilinliu77]

No description provided.

[msftclas]

Thank you for your submission, we really appreciate it. Like many open source projects, we ask that you sign our Contributor License Agreement before we can accept your contribution.

❌ whatseven sign now
_{You have signed the CLA already but the status is still pending? Let us recheck it.}

[madratman]

Hi @whatseven
What are you trying to achieve with this PR?
Update: I'm closing this as we've a better version for capturing images in #2472.
Did you have any benchmarks if this method helps?
Also, please clean up the PR (we don't want a PrimeCalculationAsyncTask that seems a leftover from a blog post on multi-threading in UE4)