Thank you for your valuable pieces of advice.
I did a Joomla debug and found that there are 59 queries, 38 of which are duplicated. Is the duplication of queries an issue? Also, I tried a &fabrikdebug=1 and got an error 404.
The result of the Joomla debug for the following queries:
SELECT guest, client_id
FROM j25_session
WHERE client_id = 0
The status of the profile: sending data took 0.14ms
SELECT m.id, m.title, m.module, m.position, m.content, m.showtitle, m.params, mm.menuid
FROM j25_modules AS m
LEFT JOIN j25_modules_menu AS mm
ON mm.moduleid = m.id
LEFT JOIN j25_extensions AS e
ON e.element = m.module
AND e.client_id = m.client_id
WHERE m.published = 1
AND e.enabled = 1
AND (m.publish_up = '0000-00-00 00:00:00' OR m.publish_up <= '2019-08-03 11:06:05')
AND (m.publish_down = '0000-00-00 00:00:00' OR m.publish_down >= '2019-08-03 11:06:05')
AND m.access IN (1,1,2,6,7,9,225,258,299)
AND m.client_id = 0
AND (mm.menuid = 1198 OR mm.menuid <= 0)
ORDER BY m.position, m.ordering
The status of the profile: Creating sort index took 2.05 ms
UPDATE `j25_extensions`
SET `params` = '{\"mediaversion\":\"18bbc53bed6bc9a72d14a650f1f86874\"}'
WHERE `type` = 'library'
AND `element` = 'joomla'
The status of the profile: query end took 6.07 ms
SHOW VARIABLES LIKE "collation_database"
The status of the profile: sending data took 1.39 ms
Can those queries be optimised? Please advise.