SW2015 SP0, placing mechanical tolerances slow down the computer

Good Morning,

Since I upgraded my SW2014 to SW2015 SP0 (french realise) my system becames extremely slow when I work in a file .slddrw and especially when I place dimensions with mechanical  tolerances (for example Ø12H7).

Any idees to suggest me would be appreciated.

Many thanks.

PL

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