Gurobi GAP doesn't decrease

Hello everyone,

I'm using gurobi to optimize a large energy system.

I'm having some issues with the MIPGap which doesn't decrease aftera certain point. I've put the log below, i've cut the log at 280s, but it goes on and on not decreasing the GAP. I tried to set up some parameters, how you can see from the log. I've tried with some other parameters such as NoRelHeurTime, Presolve and PreParsify but the result is always the same.

Glad if you can help me,

Thank you!!

Set parameter Cuts to value 3
Set parameter NumericFocus to value 3
Set parameter NonConvex to value 2
Set parameter MIPFocus to value 2
Gurobi Optimizer version 9.5.2 build v9.5.2rc0 (win64)
Thread count: 10 physical cores, 12 logical processors, using up to 12 threads

Warning: excessive time spent in model updates.
Consider calling update less frequently.

Optimize a model with 12828 rows, 9812 columns and 25670 nonzeros
Model fingerprint: 0x681cc363
Model has 1406 quadratic constraints
Variable types: 8406 continuous, 1406 integer (1406 binary)
Coefficient statistics:
  Matrix range     [2e-03, 1e+05]
  QMatrix range    [7e-05, 1e+03]
  QLMatrix range   [1e+05, 1e+05]
  Objective range  [1e+00, 1e+00]
  Bounds range     [3e+00, 2e+03]
  RHS range        [2e+00, 1e+05]

---------------------------------------------------------------------------
Multi-objectives: starting optimization with 695 objectives (1 combined) ...
---------------------------------------------------------------------------
---------------------------------------------------------------------------

Multi-objectives: optimize objective 1 (weighted) ...
---------------------------------------------------------------------------

Optimize a model with 12828 rows, 9812 columns and 25670 nonzeros
Model fingerprint: 0x4ef7800f
Model has 1406 quadratic constraints
Variable types: 8406 continuous, 1406 integer (1406 binary)
Coefficient statistics:
  Matrix range     [2e-03, 1e+05]
  QMatrix range    [7e-05, 1e+03]
  QLMatrix range   [1e+05, 1e+05]
  Objective range  [1e+00, 1e+00]
  Bounds range     [1e+00, 2e+03]
  RHS range        [2e+00, 1e+05]
Presolve removed 5994 rows and 3193 columns
Presolve time: 0.03s
Presolved: 12448 rows, 6619 columns, 37556 nonzeros
Presolved model has 1404 bilinear constraint(s)
Variable types: 5217 continuous, 1402 integer (1402 binary)
Root relaxation presolve removed 1 rows and 1 columns
Root relaxation presolved: 12447 rows, 6618 columns, 37556 nonzeros


Root relaxation: objective 2.278008e+03, 3779 iterations, 0.19 seconds (0.14 work units)

    Nodes    |    Current Node    |     Objective Bounds      |     Work
 Expl Unexpl |  Obj  Depth IntInf | Incumbent    BestBd   Gap | It/Node Time

     0     0 2278.00779    0  857          - 2278.00779      -     -    0s
     0     2 2278.00779    0  856          - 2278.00779      -     -    1s
  1058  1114 2310.26299   95  696          - 2294.52731      -   2.7    5s
  3698  2162 infeasible  274               - 2294.52731      -   1.7   10s
  6732  2632 2324.51467  381  632          - 2294.52731      -   4.6   15s
  8153  3813 2376.20831  412   42          - 2317.58966      -   7.6   20s
H 8153  3622                    2386.6306194 2317.58966  2.89%   7.6   25s
  8189  3657 2325.26233   18  807 2386.63062 2320.47356  2.77%  11.0   30s
H 8198  3473                    2386.6301964 2320.47356  2.77%  11.1   30s
  8955  4025 2326.21258   56  752 2386.63020 2320.47356  2.77%  10.6   35s
  9906  4646 2326.67116   99  697 2386.63020 2320.47356  2.77%  10.2   40s
 10871  5166 2326.83475  146  655 2386.63020 2320.47356  2.77%   9.7   45s
 11667  5752 2328.84579  185  596 2386.63020 2320.47356  2.77%  10.0   50s
 12786  6470 2332.04751  238  594 2386.63020 2320.47356  2.77%   9.5   56s
 13218  6610 2326.85058  261  587 2386.63020 2320.47356  2.77%   9.3   66s
 13806  7010 2326.87600  291  591 2386.63020 2320.47356  2.77%   9.1   70s
 14811  7756 2329.55742  344  583 2386.63020 2320.47356  2.77%   9.2   76s
 15404  8178 2328.81481  377  584 2386.63020 2320.47356  2.77%   9.0   80s
 16481  8935 2329.28174  423  576 2386.63020 2320.47356  2.77%   8.7   85s
 17622  9707 2329.40125  484  575 2386.63020 2320.47356  2.77%   8.4   91s
 18385 10244 2329.40125  521  574 2386.63020 2320.47356  2.77%   8.3   96s
 19262 11064 2329.43169  564  571 2386.63020 2320.47356  2.77%   8.2  101s
 20221 12099 2329.53587  613  567 2386.63020 2320.47356  2.77%   8.2  106s
 21328 13004 2329.54831  667  561 2386.63020 2320.47356  2.77%   8.0  112s
 21726 13549 2329.54831  689  558 2386.63020 2320.47356  2.77%   8.0  115s
 22884 14620 2329.55324  754  556 2386.63020 2320.47356  2.77%   7.8  123s
 23363 15225 2329.55774  779  555 2386.63020 2320.47356  2.77%   7.7  127s
 24004 15890 2330.02092  816  556 2386.63020 2320.47356  2.77%   7.6  131s
 24688 16590 2329.59562  851  560 2386.63020 2320.47356  2.77%   7.6  135s
 26215 18089 2329.56871  930  548 2386.63020 2320.47356  2.77%   7.4  144s
 27004 18843 2329.58041  974  547 2386.63020 2320.47356  2.77%   7.3  149s
 27810 19666 2329.56846 1015  545 2386.63020 2320.47356  2.77%   7.2  154s
 28643 20433 2329.57265 1059  542 2386.63020 2320.47356  2.77%   7.1  159s
 29454 21236 2329.61958 1098  542 2386.63020 2320.47356  2.77%   7.1  165s
 30311 22098 2329.61098 1144  538 2386.63020 2320.47356  2.77%   7.0  171s
 31221 23035 2329.63596 1193  532 2386.63020 2320.47356  2.77%   7.0  178s
 32182 24138 2329.63596 1239  526 2386.63020 2320.47356  2.77%   6.9  185s
 33349 25149 2329.63596 1293  517 2386.63020 2320.47356  2.77%   6.8  192s
 34416 26129 2329.63884 1345  512 2386.63020 2320.47356  2.77%   6.7  198s
 35460 27152 2329.63929 1396  508 2386.63020 2320.47356  2.77%   6.6  205s
 36544 28196 2329.63774 1452  502 2386.63020 2320.47356  2.77%   6.5  211s
 37607 29208 2329.69102 1505  498 2386.63020 2320.47356  2.77%   6.4  219s
 38683 29217 2329.64526 1547  493 2386.63020 2320.47356  2.77%   6.4  230s
 38694 30181 2329.64754 1547  493 2386.63020 2320.47356  2.77%   6.4  237s
 39718 31156 2329.64526 1600  492 2386.63020 2320.47356  2.77%   6.3  245s
 40761 32137 2329.64526 1651  491 2386.63020 2320.47356  2.77%   6.2  252s
 41818 32753 2329.64537 1704  489 2386.63020 2320.47356  2.77%   6.2  258s
 42472 33793 2329.64538 1746  488 2386.63020 2320.47356  2.77%   6.2  265s
 43512 34887 2329.64542 1799  489 2386.63020 2320.47356  2.77%   6.1  273s
 44606 35981 2329.64584 1856  486 2386.63020 2320.47356  2.77%   6.1  280s