Testcafe runs on average 2-3 times slower when using SSL - ssl

Question

After installing and using a self-signed SSL certificate by following the official guide here and running our test suites it was discovered that the tests take about 3 times as long. I would expect there to maybe be some sort of delay but that's a lot.
Any ideas on why this is the case?
With SSL: 45 passed (6m 56s)
Without SSL: 45 passed (2m 55s)
.testcaferc.js File
let filtered_tests = [
// Located in editor_page_tests.js
'user_is_able_to_add_a_section_column_row_and_element_to_editor',
'pop_up_element_displays_during_page_preview',
'clicking_button_shows_hides_elements',
'user_is_able_to_save_when_adding_a_video',
'user_is_able_to_save_when_leaving_video_embed_blank',
// Located in courses_page_tests.js
'user_can_preview_existing_course',
'optin_user_can_navigate_through_course',
'manually_added_user_can_navigate_through_course',
// Located in funnels_page_tests.js
'user_can_navigate_through_funnel',
// Located in developer_portal_page_tests.js
'user_can_navigate_to_developer_portal_page',
// Located in members_page_tests.js
'user_can_navigate_to_team_members_page',
// Located in teams_dashboard_pages_tests.js
'user_can_navigate_to_team_dashboard_page',
// Located in workspaces_page_tests.js
'user_can_navigate_to_team_workspaces_page'
]
let isolated_tests = [
// Located in sites_overview_page_tests.js
'user_can_make_site_public',
'user_can_edit_site_name',
'user_can_make_site_password_protected',
'user_can_make_site_private',
'user_can_edit_site_domain',
'changing_site_domain_updates_funnel_urls',
// Located in account_details_page_tests.js
'user_can_edit_account_name',
// Located in account_details_page_tests.js
'user_can_edit_account_password',
// Located in general_page_tests.js
'user_can_edit_workspace_details'
]
let full_filter = filtered_tests.concat(isolated_tests)
let build_filter = () => {
// Purpose: To set the suite that we want to run. (Sanity, Smoke, Regression)
var filter = {}
if(process.env.SCOPE) {
filter = {
testGrep: `^(?!.*(${filtered_tests.join('|')})).*$`,
testMeta: {
scope: process.env.SCOPE
}
}
} else {
filter = {
testGrep: `^(?!.*(${full_filter.join('|')})).*$`
}
}
return filter
}
let determine_concurrency = () => {
// Purpose: To set concurrency dependant on the scope that is passed
let concurrency = 5
if (process.env.SCOPE == 'isolated') {
concurrency = 1
}
return concurrency
}
module.exports = {
assertionTimeout: 5000,
browsers: [
"chrome:headless --window-size=1920,1159 --allow-insecure-localhost"
],
concurrency: determine_concurrency(),
cache: true,
clientScripts: "scripts/hide_notifications.js",
filter: build_filter(),
hostname: "localhost",
pageLoadTimeout: 30000,
quarantineMode: {
successThreshold: 1,
attemptLimit: 3
},
reporter: [
{
name: "spec",
output: "artifacts/reports/spec_results"
},
{
name: "xunit",
output: "artifacts/reports/xunit_results.xml"
}
],
screenshots: {
path: "artifacts/screenshots",
pathPattern: "${TEST}_${DATE}_${TIME}.png",
takeOnFails: true,
thumbnails: false
},
selectorTimeout: 5000,
skipJsErrors: true,
skipUncaughtErrors: true,
src: "tests/**",
ssl: {
pfx: "ssl/testingdomain.pfx",
rejectUnauthorized: true
},
videoEncodingOptions: {
aspect: "16:9",
framerate: 30
},
videoOptions: {
failedOnly: true,
pathPattern: "${TEST}_${DATE}_${TIME}.mp4",
singleFile: false
},
videoPath: "artifacts/recordings"
}