Before the update, I had version 3.1 and everything ran very smoothly. Last Wednesday I updated to 3.3.1, following all the steps indicated and updating the database with the files provided. The update was successful and the system is working, however we have noticed that after the update the speed of the response of the system is by far slow, the processor consumption is very high and there are many simultaneous processes, a large number of queries to mysql. In a range of 15,818,366 queries in 12 hours, this is 21,969 queries per minute. The records we have are approximately 10 thousand and we are only 10 users working on the system.
We have a backup with 3.1 and there the response of the system is normal, It is just with the updated system.
Does anyone has experienced something similar? Any advice on this?