Hoppers server load is way to high...

Since I Updated to 1.9 25% of my server load is going to hoppers... We only have 1 thread and 25% of my cpu is going to hoppers... Please fix this... There has also been a lot of reports of this on spigot:

https://hub.spigotmc.org/jira/browse/SPIGOT-1834

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Timings from spigot: https://timings.spigotmc.org/?url=15717306