ReportServer needs a directory to store temporary files. You can define the directory to use in /fileserver/etc/main/main.cf. Furthermore, you can specify a maximum lifetime (in seconds) of temporary files in the directory.
<tempdir>tempdir</tempdir>
<tempfile>
<lifetime>3600</lifetime>
</tempfile>
ReportServer performs certain maintenance tasks from time to time. You can define the interval (in ms) with which ReportServer will execute these.
<maintenance>
<tasks>
<interval>600000</interval>
</tasks>
</maintenance>
ReportServer allows to define a timeout (in ms) for search queries:
<search>
<timeout>5000</timeout>
</search>