Flux Query too long query time

I got a flux query on which it take long time:

the array variable can have 1000 values ~.

ldevname = from(bucket: v.bucket)
 |> range(start: -365d)
  |> filter(fn: (r) => r._measurement == "LDEV_CNF" )
  |> filter(fn: (r) => r.poolid == "${pool}")
  |> keep(columns: ["ldevID_cnf"])
  |> group()
  |> distinct(column: "ldevID_cnf")
  |> findColumn(fn: (key) => true, column: "_value") 

from(bucket: v.bucket)
  |> range(start: v.timeRangeStart, stop: v.timeRangeStop)
  |> filter(fn: (r) => r._measurement == "LDEV" and r._field == "LDEV_IOPS" )
  |> filter(fn: (r) => contains(value: r.ldevID, set: ldevname))

Is-it possible to optimize this one?

Many thanks,

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