refactor: Factorize GX2F delta param calculation #16884

Job	Run time
linux-nodeps (centos8-lcg100-gcc10)	15m 47s
linux_ubuntu_extra (ubuntu2004, 17)	9m 39s
linux_ubuntu	5m 27s
linux_ubuntu_extra (ubuntu2204_cpp20, 20)	6m 15s
macos	11m 52s
cuda	3m 10s
linux_ubuntu_extra (ubuntu2204_clang, 17)	6m 2s
sycl	3m 37s
linux_physmon	29m 48s
linux_examples_test	18m 29s
linux_physmon_perf_report	0s
	1h 50m 6s

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