Upgrade couchbase version from 4.5.1-2844 to 5.0.1

We are using couchbase version 4.5.1-2844 and planning to upgrade it to 5.0.1. But as per https://issues.couchbase.com/browse/MB-23074 ticket, couchbase 5.0.0 have some performance in RHEL 7.3 with 3.10.0-514.6.2. We are using RHEL 7.3 Kernel 3.10.0-693.2.2.el7.x86_64. So just wanted to know few things.

  1. Will we still face the same issue as per MB-23074 ticket ?
  2. What about if we change our OS to Ubuntu 16.04. Which uses kernel version 4.10 series. Will the same issue will persist ?