Massive site slowdown since EE7 upgrade.

Templates
0.000009 / 3.2MB - Begin Template Processing -
0.000016 / 3.2MB URI:
0.000018 / 3.2MB Template: /
0.000023 / 3.2MB Retrieving Template from Database: /index
0.000391 / 3.2MB Retrieving Template from File
0.000901 / 3.3MB Template Type: webpage
0.000907 / 3.3MB Parsing Site Variables
0.002793 / 3.3MB Config Assignments & Template Partials
0.002984 / 3.3MB Parse Current Time Variables
0.003019 / 3.3MB Parsing Segment, Embed, Layout, logged_in_*, and Global Vars Conditionals
0.006509 / 3.4MB - Beginning Tag Processing -
0.006514 / 3.4MB Detecting Tags in Template
0.006539 / 3.4MB No Closing Tag
0.006655 / 3.4MB Running Tags
0.006909 / 3.4MB Calling Tag: {exp:seo_lite default_title="A global creative production and events agency | World Wide Group" default_description="World Wide Group, harnessing over 85 years’ experience telling those stories, we deliver worldwide events for global brands, charities and governments."}
0.007356 / 3.4MB -> Data Returned
0.007711 / 3.5MB Calling Tag: {exp:channel:entries channel="sector" fixed_order="2|3|4" disable="categories|member_data|pagination"}
0.028565 / 4.5MB Replace all of the relationship fields
0.971695 / 9.6MB Replace all of the relationship fields
1.444340 / 12.0MB Replace all of the relationship fields
1.926534 / 13.6MB -> Data Returned
1.926715 / 13.6MB Calling Tag: {exp:channel:entries channel="work" limit="3" disable="categories|member_data|pagination"}
2.406165 / 16.3MB Replace all of the relationship fields
2.878529 / 18.7MB Replace all of the relationship fields
3.350906 / 21.1MB Replace all of the relationship fields
3.355371 / 21.0MB -> Data Returned
3.355551 / 21.0MB Calling Tag: {exp:channel:entries channel="client" url_title="clients" disable="categories|member_data|pagination"}
10.958146 / 60.0MB Replace all of the relationship fields
10.971292 / 60.0MB -> Data Returned
10.971507 / 60.0MB Calling Tag: {exp:channel:entries channel="team" limit="3" disable="categories|member_data|pagination"}
10.977830 / 60.3MB Replace all of the relationship fields
11.450605 / 62.7MB Replace all of the relationship fields
11.925848 / 65.2MB Replace all of the relationship fields
12.414927 / 67.5MB -> Data Returned
12.415137 / 67.5MB Calling Tag: {exp:channel:entries channel="blog" limit="3" disable="categories|member_data|pagination"}
12.902592 / 70.2MB Replace all of the relationship fields
13.385550 / 72.6MB Replace all of the relationship fields
13.869809 / 75.1MB Replace all of the relationship fields
13.885136 / 74.9MB -> Data Returned
13.885161 / 74.9MB - End Tag Processing -
13.885202 / 74.9MB Processing Layout Templates
13.885291 / 75.0MB      Retrieving Template from Database: wwg/_default_layout
13.885944 / 75.0MB      Retrieving Template from File
13.886240 / 75.0MB      Template Type: webpage
13.886260 / 75.0MB      Parsing Site Variables
13.886308 / 75.0MB      Config Assignments & Template Partials
13.886565 / 75.0MB      layout Variables: (show more)
13.886703 / 75.0MB      Parse Current Time Variables
13.886888 / 75.0MB      Parsing Segment, Embed, Layout, logged_in_*, and Global Vars Conditionals
13.891410 / 75.1MB       - Beginning Tag Processing -
13.891416 / 75.1MB      Detecting Tags in Template
13.891500 / 75.1MB      Running Tags
13.892042 / 75.1MB      Calling Tag: {exp:freeform_next:form form="contact" submit_class="btn btn-celadon mt-3" return_url="/" class="" }
13.906594 / 75.4MB      Calling Extension Class/Method: Freeform_next_ext/addHoneypotInputToForm
13.915469 / 75.6MB      Calling Extension Class/Method: Freeform_next_ext/addHoneypotJavascriptToForm
13.915588 / 75.6MB      Calling Extension Class/Method: Freeform_next_ext/addDateTimeJavascript
13.915698 / 75.6MB      Calling Extension Class/Method: Freeform_next_ext/addFormDisabledJavascript
13.915909 / 75.7MB      Calling Extension Class/Method: Freeform_next_ext/addFormAnchorJavascript
13.916021 / 75.7MB      Calling Extension Class/Method: Freeform_next_ext/addTableJavascript
13.916033 / 75.6MB       -> Data Returned
13.916141 / 75.7MB      Calling Tag: {exp:freeform_next:form form="newsletter" return_url="/" }
13.918747 / 75.7MB      Calling Extension Class/Method: Freeform_next_ext/addHoneypotInputToForm
13.920178 / 75.7MB      Calling Extension Class/Method: Freeform_next_ext/addHoneypotJavascriptToForm
13.920293 / 75.7MB      Calling Extension Class/Method: Freeform_next_ext/addDateTimeJavascript
13.920402 / 75.7MB      Calling Extension Class/Method: Freeform_next_ext/addFormDisabledJavascript
13.920575 / 75.7MB      Calling Extension Class/Method: Freeform_next_ext/addFormAnchorJavascript
13.920712 / 75.7MB      Calling Extension Class/Method: Freeform_next_ext/addTableJavascript
13.920723 / 75.7MB       -> Data Returned
13.920737 / 75.7MB       - End Tag Processing -
13.920742 / 75.7MB      Processing Advanced Conditionals
13.921558 / 75.7MB       - End Template Processing -
13.921561 / 75.7MB      Parse Global Variables
13.935913 / 75.9MB      Template Parsing Finished