Execution just don't mix well with low tickrate servers. I've said several times that I think the PvP revamp and CC are actually really well done... but it feels like they were written for a completely different game. With how low tickrate the servers are, I think a slower PvP system focused on attrition and long duration CC effects (balanced by everyone having Purify without resilience and Fetter Ward) would make more sense, as each individual action matters less than the sum total.