Geax Saguaro tubulars are probably the fastest tyres I’ve ridden, Dugast Rhino XL are not far behind, you’d need new rims though.
Maxxis Aspens are also very nice in a clincher – work well tubeless. Very much a dry weather tyre though.
Geax Barro Race are very fast but come up pretty narrow – available in a TNT (essentially UST) version but beware they are VERY tight, and also a bit heavy. Offset somewhat by not needing to use much sealant though.
Ralphs are also good and suit a wider range of conditions than most credit them for IMO.
Bonty TLR are probably the best tubeless tyres I’ve used, though I’ve not got much experience on their fast summery versions. Mud X is my winter tyre of choice, and actually a very decent weight and a good all-rounder for the UK in anything but pure hardpack.