[automerger skipped] Improve runtime for generating visualizations. am: 416faa52c6 am: 658401aa55 -s ours

am skip reason: Change-Id Ic31c2afd59b4851dafae2f616c4bb0f04e5246dd with SHA-1 d741795ef2 is in history

Original change: https://android-review.googlesource.com/c/platform/test/mlts/benchmark/+/1393201

Change-Id: I98b79f5349247305dfb3cee72ec4b35b6c81680a