Sidekiq - Enqueuing a job to be performed 0.seconds from now

I'm using sidekiq for background job and I enqueue a job like this:

SampleJob.set(wait: waiting_time.to_i.seconds).perform_later(***)　・・・①

When waiting_time is nil,it becomes

SampleJob.set(wait: 0.seconds).perform_later(***) 

Of course it works well, but I'm worried about performance because worker enqueued with wait argument is derived by poller,so I wonder if I should remove set(wait: waiting_time.to_i.seconds) whenwaiting_time is nil.

i.e.)

if waiting_time.present?  SampleJob.set(wait: waiting_time.to_i.seconds).perform_later(***)else  SampleJob.perform_later(***)end ・・・②

Is there any differences in performance or speed between ① and ②？Thank you in advance.