Actions in Replicon are slow

My team finds replicon very frustrating to use as it is so slow to perform actions once logged in.
Generating an initial timesheet on first login often takes 30 seconds and simple actions like copying the previous days timesheet are also quite slow.
I have raised this with support but they say that this is an acceptable performance for these functions.
I hope that this can be investigated as our whole team finds it very frustrating to enter our timesheets each day.