# Major latency (but fix after reboot) **URL:** \ **Category:** General Discussion\ **Tags:** ignition79\ **Created:** [February 16, 2022, 7:36am UTC](https://forum.inductiveautomation.com/t/major-latency-but-fix-after-reboot/56195 "2022-02-16T07:36:39Z")\ **Posts on this page:** 1\ **Showing post:** 5
**Author:** ![JordanCClark](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/jordancclark/32/83362_2.png) [@JordanCClark](https://forum.inductiveautomation.com/u/JordanCClark)\ **Post date:** [February 17, 2022, 3:43pm UTC](https://forum.inductiveautomation.com/t/major-latency-but-fix-after-reboot/56195/5 "2022-02-17T15:43:34Z")
From other similar threads it seems to be tied to the Siemens driver. Either way, it's probably a good idea to upgrade to the latest 7.9 version. > [@Weekly 7.9 Changelogs - 2020](https://forum.inductiveautomation.com/t/weekly-7-9-changelogs-2020/35731/9): > > Nightly Changelog: 7.9.15-b20200811 Alarm Notification 16841: Alarm Pipeline Block UI takes long to connect pipeline block lines Improved performance of Alarm Pipeline Block UI. Ignition Platform 16926:IllegalStateException from S+F cache updater task Prevent IllegalStateException from S+F cleanup thread. 16070: Alarm Event Missing Information After Alarm Enabled Property Toggled Fixed an issue where alarm event information was lost if the event was cleared while the alarm configuration wa… --- _[View the full topic](https://forum.inductiveautomation.com/t/major-latency-but-fix-after-reboot/56195)._