Some normalization performance update

Normalization performance (3098.397ms, 114889 calls)
Normalization performance (2990.861ms, 114889 calls)
Normalization performance (3058.297ms, 114889 calls)
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Normalization performance (3045.161ms, 113757 calls)
Normalization performance (3045.737ms, 113757 calls)
Normalization performance (2977.913ms, 113757 calls)
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Normalization performance (3048.852ms, 112377 calls)
Normalization performance (2948.815ms, 112377 calls)
Normalization performance (2877.317ms, 112377 calls)