Servicedesk Performance

Servicedesk Performance

Hello,
When 50 users connect to servicedesk, Service performance drops sharply!
And virtually nothing can be done except reset the service
Its database is MS-SQL and it has been completely tuned, but the problem of slowness still exists
why?
========= Details  resource=========
Server OS: Windows Server 2016 
Server Architecture: 64 bit
C Drive: 30.04 / 200.88 GB 14%
RAM:32.0 GB
Initial Memory: 128 MB
Maximum Memory:22768 MB
NO. of CPU Threads: 8
Snapshot Isolation: Enabled
Log File Size:2056 MB
Data File Size: 10240MB
Log File Max Size: 2097152 MB
Data File Max Size:Unlimited
Log File Autogrowth: 16384
Data File Autogrowth: 32768

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