Change frobeniusschur factor #625

Job	Run time
Julia 1 - macOS-latest -	33m 34s
Julia lts - ubuntu-latest -	1h 13m 7s
Julia 1 - windows-latest -	1h 33m 24s
Julia 1 - ubuntu-latest -	1h 26m 34s
Julia lts - windows-latest -	1h 25m 37s
Julia lts - macOS-latest -	23m 28s
Julia nightly - macOS-latest -	34m 20s
Julia nightly - ubuntu-latest -	54m 53s
Julia nightly - windows-latest -	48m 36s
	8h 53m 33s

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