rancher: Rancher UI opening too slowly

What kind of request is this (question/bug/enhancement/feature request): Bug

Steps to reproduce (least amount of steps as possible): Installed Rancher v2.2.2 using Helm as described in documentation

Result: UI is too slow. Clicking on any link in UI easily takes more than a minute to open.

Other details that may be helpful: Also checked etcd. It has some messages related to latency

etcdserver: read-only range request "key:\"/registry/configmaps/kube-system/cattle-controllers\" " with result "range_response_count:1 size:413" took too long (161.08599ms) to execute

Complete log attached here: etcd.log

Environment information

• Rancher version (rancher/rancher/rancher/server image tag or shown bottom left in the UI): Rancher v2.2.2
• Installation option (single install/HA): HA

Cluster information

• Cluster type (Hosted/Infrastructure Provider/Custom/Imported): On-prem VM
• Machine type (cloud/VM/metal) and specifications (CPU/memory): VM, 4 core, 16 GB (All 3 nodes have same configuration)
• Kubernetes version (use kubectl version):

Client Version: version.Info{Major:"1", Minor:"14", GitVersion:"v1.14.1", GitCommit:"b7394102d6ef778017f2ca4046abbaa23b88c290", GitTreeState:"clean", BuildDate:"2019-04-08T17:11:31Z", GoVersion:"go1.12.1", Compiler:"gc", Platform:"linux/amd64"}
Server Version: version.Info{Major:"1", Minor:"13", GitVersion:"v1.13.5", GitCommit:"2166946f41b36dea2c4626f90a77706f426cdea2", GitTreeState:"clean", BuildDate:"2019-03-25T15:19:22Z", GoVersion:"go1.11.5", Compiler:"gc", Platform:"linux/amd64"}

• Docker version (use docker version):

Client:
 Version:           18.09.5
 API version:       1.39
 Go version:        go1.10.8
 Git commit:        e8ff056
 Built:             Thu Apr 11 04:43:34 2019
 OS/Arch:           linux/amd64
 Experimental:      false

Server: Docker Engine - Community
 Engine:
  Version:          18.09.5
  API version:      1.39 (minimum version 1.12)
  Go version:       go1.10.8
  Git commit:       e8ff056
  Built:            Thu Apr 11 04:13:40 2019
  OS/Arch:          linux/amd64
  Experimental:     false