Most slicks do that on the front, have they done a lot of runs? You could run a bit less negative camber or change the shims or length of the top upright so you get less camber gain in the corner but all of this will take away steering. The tyres will still work ok like that as it just the insert, perhaps some are worse than others. I've been using Rush and they aren't too bad for it, running -2 degree camber
There's a load of Carten runners and the UK seller in the FB groups so will get more replies there, Andrew Bause is the main man
https://www.facebook.com/groups/761538774046605/