Django database strange behavior - dev server is loading about minutes

So, after few days debugging and asking on IRC, I have a reason why the runserver (and almost every manage.py command) takes that long time. Django seems does not check SQL queries in views.py where I have most of my SQL queries. But I have two easy queries in my forms.py, to fill dropdown in my form and that cause whole problem.

So now I know where problem is, but I am thinking how to resolve it. Thing is that I need data from my models in my form.

My form looks:

def get_vendor_set():
    """
    Returns set of contributors to use as choices
    """
    vendor_set = [  
        ('Availability', 'Availability'),
        ('No Competitor', 'No Competitor'),         
        ('Popularity', 'Popularity'),
    ]
    contrib = CompetitorLastPrice.objects.order_by('vendor')
    for con in contrib:
        vendor_set.append((con.vendor,con.vendor))

    return sorted(set(vendor_set))


def get_sorg_set():
    """
    Return set of sorg to use as choices
    """
    sorg_set = []
    sorg_cursor = CltSorg.objects.all()
    for sorg in sorg_cursor:
        sorg_set.append((sorg.sorg, sorg.sorg +' - '+ sorg.sorg_description))

    return sorg_set


class FamilyForm(forms.ModelForm):

    class Meta:
        model = Family
        fields = ['name', 'family_number', 'price_list', 'sorg', 'filter', 'linearity']
        widgets = { 
            'sorg': forms.Select(choices=get_sorg_set()),
        }


class CustomInlineFormset(BaseInlineFormSet):
    """
    Custom formset that support initial data
    """
    ...
    ...

ContribFormSet = inlineformset_factory(Family, Templates, formset=CustomInlineFormset,
                                       fields='__all__', min_num=1, extra=0,
                                       widgets={'contributor' : forms.Select(choices=get_vendor_set())}
)

The problems causes those widgets... Is there any other way how to get data to the initial form (to the choice list) somewhere out of the forms.py ...I am thinking to do it in views.py somehow.

Thanks for any answer.

V.