Plugin queries time out

Hi there!
I am a SiteGround hosting client, and I am experiencing problems with my site’s performance. The hosting team investigated and found many SQL queries that take too much time to complete. Many of these queries involve the SiteGround Optimizer plugin. Is there any chance you can help me debug this?

This are the slow queries:

# Query_time: 8.891236  Lock_time: 4.235332  Rows_sent: 0  Rows_examined: 0  Rows_affected: 0  Bytes_sent: 111
SET timestamp=1695659573;
SELECT option_value FROM wpzm_options WHERE option_name = 'siteground_optimizer_preload_combined_css' LIMIT 1;

# Query_time: 9.790908  Lock_time: 4.900205  Rows_sent: 0  Rows_examined: 0  Rows_affected: 0  Bytes_sent: 111
SET timestamp=1695659574;
SELECT option_value FROM wpzm_options WHERE option_name = 'siteground_optimizer_preload_combined_css' LIMIT 1;

# Query_time: 9.893154  Lock_time: 4.235972  Rows_sent: 0  Rows_examined: 0  Rows_affected: 0  Bytes_sent: 111
SET timestamp=1695659574;
SELECT option_value FROM wpzm_options WHERE option_name = 'siteground_optimizer_preload_combined_css' LIMIT 1;

# Query_time: 10.805986  Lock_time: 4.796637  Rows_sent: 0  Rows_examined: 0  Rows_affected: 0  Bytes_sent: 111
SET timestamp=1695659585;
SELECT option_value FROM wpzm_options WHERE option_name = 'siteground_optimizer_combine_javascript_exclude' LIMIT 1;

# Query_time: 14.435418  Lock_time: 4.796576  Rows_sent: 0  Rows_examined: 0  Rows_affected: 0  Bytes_sent: 111
SET timestamp=1695659589;
SELECT option_value FROM wpzm_options WHERE option_name = 'siteground_optimizer_combine_javascript_exclude' LIMIT 1;

# Query_time: 60.449591  Lock_time: 28.984816  Rows_sent: 0  Rows_examined: 0  Rows_affected: 0  Bytes_sent: 111
SET timestamp=1695659662;
SELECT option_value FROM wpzm_options WHERE option_name = 'siteground_optimizer_optimize_web_fonts' LIMIT 1;

# Query_time: 57.686564  Lock_time: 30.833403  Rows_sent: 0  Rows_examined: 0  Rows_affected: 0  Bytes_sent: 111
SET timestamp=1695659662;
SELECT option_value FROM wpzm_options WHERE option_name = 'siteground_optimizer_optimize_web_fonts' LIMIT 1;

Thanks in advanced.

The page I need help with: [log in to see the link]