I'm using PI Datalink to pull data. The system is very slow at pulling data that I wouldn't consider to be massive (10-30 mins, many times running into some execution error). The current pull I'm doing is for 18 tags, at 10-minute frequency, over 10 months. Based on other PI system users - I'm surprised it's taking this long as other systems should perform this within a minute. I also notice the same issue when just pulling up a single tag in PI ProcessBook over periods longer than 2-3 months.
Any suggestions for what can be checked to see why pulling from the historian is so slow?