Enable Basic Performance Preferences

Preferences

YAML
preferences:
 tiki_minify_javascript: y
 tiki_minify_late_js_files: y
 javascript_cdn: jquery
 tiki_minify_css: y
 tiki_minify_css_single_file: y
 feature_obzip: y
 tiki_cachecontrol_session: max-age=3600, private
 smarty_compilation: never

Not sure about the tiki_cachecontrol_session option here, improve if you can