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>