Slow Performance Over time, Drawing Access Forms

Question

we've been using a small access database for almost a year now, written from scratch using only Access 2013
over time drawing of one of the forms slows right down, once the form is draw its fine, but if you switch to a different form at the top then switch back it draws slow, maybe 7-8 seconds compared to the usual 1 second, sometimes it can work all day no problem,
sometimes after an hour it starts drawing the form slow, the only way to cure it is to restart the machine.
Logging off and logging back on doesn't cure it, only restarting it, it does get restarted every night automatically as an attempt to help the problem
this happens on 2 machines, both have intel HD graphics, (previously one was using a NVidia GT 250 which had appalling performance in design mode (even with hardware acceleration disabled) so we switched to the on-board, although this issue happens
with both machines)
Back end gets compacted/and repaired every night on a schedule as I did notice a big slow down if you let that go a couple of weeks, I've decompiled/recompiled the front end, short of re-writing the form I'm not sure what to do, it does have a lot of controls,
around 30 textboxes 1 combo box + 20 or so labels and 4 buttons, one embedded report, it only happens on this one form, I have embedded reports in other forms which don't have the same issue and have the same number of controls.
I'm a bit of a loss, its not a huge issue, but just an annoyance, when I get time I'm tempted to try recreating the form from scratch, but there is a lot of VBA code behind it, before trying that just wondering if there are any suggestions to improve performance?
*edit* the form is loaded from a list of customers, so it gets opened closed a lot, I thought simply hiding the form instead of loading/unloading all the time would speed it up, it does slightly improve the speed after viewing the second lot of details,
however it suffers the safe fate of slowing down over time, it seems to be only drawing the form and not accessing the db

Answer 1

I think you would benefit from a code review by a strong Access developer. What you are describing is not normal and may be caused by systematic programming choices.
-Tom. Microsoft Access MVP
Just wondering, once this does happen going into design mode on any form is slow to draw, but only the one form at runtime once it starts happening.
the only visible difference apart from waiting is seeing the 'property sheet' on the right hand side gets visibly drawn left to right on any form once this happens, switch back to form view you see it get wiped out slowly, fade from left to right as it blanks
the form out
I had this 'slow' behaviour constantly with the NVidia card in one of our machines, even on new blank databases.
I'm not even sure if this is linked to the form I've made or not, its just the only reason I notice it is that it's frustrating to use.
Is this code review idea something that people volunteer to check or is it a paid service?