It's the same at any displaced threshold if there are no center line lights with 15m spacing, not specifically 08R at Gatwick. Manchester 23R is another.
So to confirm what you are saying:
- If you are doing more than 60kts (where'd that come from anyway?) before you reach the 15m spacing you can't carry out a LVTO?
- To rephrase the other question you ignored - Does your OPS manual state that you require 15m spacing HI center line lights to perform a LVTO?