In the Relative Limit field of the Constraints Cuts box:

you can control the number of constraint cuts that are generated by the integer pre-solver. Most integer programming models benefit from the addition of some constraint cuts. However, at some point additional cuts take more time to generate than they save in solution time. For this reason, LINGO imposes a relative limit on the number of constraint cuts that are generated.

The default limit is set to .75 times the number of true constraints in the original formulation.