System hangs when attemting to update product

CS-Cartv4.17.1
Intermittent. I attempt to save at a product file ( in my case changing stock level or attempting to delete a product ) the system hangs and I can’t leave the page.
The store also fails to load.
I go back at a later point and all is well.
Products (update)
21/11/2023, 11:59 AM
Taking Shape loose tunic dress with pocket, sz. 18, black & grey, exc. cnd. (#2812)
Requests (http/https request)
21/11/2023, 11:56 AM
Taking Shape loose tunic dress with pocket, sz. 18, black & grey, exc. cnd. (#2812)
Requests (http/https request)
21/11/2023, 11:56 AM
Taking Shape loose tunic dress with pocket, sz. 18, black & grey, exc. cnd. (#2812)
Requests (http/https request)
21/11/2023, 11:56 AM
Taking Shape loose tunic dress with pocket, sz. 18, black & grey, exc. cnd. (#2812)
Requests (http/https request)
21/11/2023, 11:56 AM
Taking Shape loose tunic dress with pocket, sz. 18, black & grey, exc. cnd. (#2812)
Requests (http/https request)
21/11/2023, 11:56 AM
Taking Shape loose tunic dress with pocket, sz. 18, black & grey, exc. cnd. (#2812)

And again just now. System didn’t hang but took some time…
Products (delete)
21/11/2023, 04:51 PM
Karen Millen superb strapless silk dress, sz. 10 “NIGHT SHIFT” (#2422)
Products (update)
21/11/2023, 04:48 PM
Karen Millen superb strapless silk dress, sz. 10 “NIGHT SHIFT” (#2422)
Requests (http/https request)
21/11/2023, 04:46 PM
Karen Millen superb strapless silk dress, sz. 10 “NIGHT SHIFT” (#2422)
Requests (http/https request)
21/11/2023, 04:46 PM
Karen Millen superb strapless silk dress, sz. 10 “NIGHT SHIFT” (#2422)
Requests (http/https request)
21/11/2023, 04:46 PM
Karen Millen superb strapless silk dress, sz. 10 “NIGHT SHIFT” (#2422)
Requests (http/https request)
21/11/2023, 04:45 PM
Karen Millen superb strapless silk dress, sz. 10 “NIGHT SHIFT” (#2422)
Requests (http/https request)
21/11/2023, 04:45 PM
Karen Millen superb strapless silk dress, sz. 10 “NIGHT SHIFT” (#2422)
Requests (http/https request)
21/11/2023, 04:45 PM
Karen Millen superb strapless silk dress, sz. 10 “NIGHT SHIFT” (#2422)
Products (delete)

The worst part is that the whole system hangs. I close the page and the site ( front or admin ) simply won’t load.
Sometimes… Request Timeout

This request takes too long to process, it is timed out by the server. If it should not be timed out, please contact administrator of this web site to increase ‘Connection Timeout’. ( don’t ask as the settings are CORRECT ).

Hello.

Contact your server administrator to check the server’s error logs.

If this doesn’t help, contact us via the Help Desk.

local_conf.php was set as below
$config[‘tweaks’][‘disable_block_cache’] = false;
changed to ‘true’ and the cart now appears to be behaving itself.
Server administrator ( and CS-Cart Help ) have done all they could in the past.
Can you advise if the cache setting ( false ) may have been responsible ?