[all variants] UEFI or Legacy

Hello

I have just installed Ubuntu RR on an Acer Aspire E1 after having removed Windows 8.:D
I changed the Bios to Legacy and it installed fine and is working fine.
Are there any advantages to trying to get Ubuntu to boot in EFI?
I have read how to do it but I can't find out why I would want to.
Is there any performance improvement to be gained with EFI?

Thanks

JonPaul