The Dell Precision 7910 is a workstation (not a server) so you won't find it in the VMware HCL for systems and a customised Dell ESXi ISO is unlikely to resolve this TSC issue.

The E5-26xx v3 series of CPUs is also not officially supported under ESXi 8.x either.
https://www.vmware.com/resources/compatibility/detail.php?deviceCategory=cpu&productid=84&deviceCate...

You could try the suggested workaround using the boot option timerForceTSC=TRUE as specified in this KB https://kb.vmware.com/s/article/65186

The E5-26xx v4 (Broadwell) series is supported under ESXi 8.x according to the VMware HCL but it is better to jump this TSC hurdle first before deciding if upgrading to E5-26xx v4 would be worthwhile in your use-case. The E5-26xx v3 and v4 are socket compatible and the Precision 7910 A34 BIOS supports both v3 and v4 CPUs.