diff --git a/tests/test_jump.py b/tests/test_jump.py
index 417f9c97..5068ee95 100644
--- a/tests/test_jump.py
+++ b/tests/test_jump.py
@@ -10,7 +10,6 @@
     point_inside_ellipse,
     find_last_grp
 )
-from astropy.io import fits
 
 DQFLAGS = {"JUMP_DET": 4, "SATURATED": 2, "DO_NOT_USE": 1, "GOOD": 0, "NO_GAIN_VALUE": 8}
 
@@ -31,19 +30,6 @@ def _cube(ngroups, readnoise=10):
 
     return _cube
 
-def test_slowmode():
-    hdul = fits.open("miri_1264_00_jump.fits")
-    gain = fits.getdata("jwst_miri_gain_0026.fits")
-    data = hdul["sci"].data * gain
-    gdq = hdul["groupdq"].data
-    readnoise = fits.getdata("jwst_miri_readnoise_0050.fits") * gain
-    gdq, num_showers = find_faint_extended(data, gdq, readnoise, 1, 100,
-                                           snr_threshold=1.3,
-                                           min_shower_area=90, inner=1,
-                                           outer=2.6, sat_flag=2, jump_flag=4,
-                                           ellipse_expand=1.1, num_grps_masked=3)
-    fits.writeto("outgdq.fits", gdq, overwrite=True)
-    print("total number of showers", num_showers)
 
 def test_find_simple_ellipse():
     plane = np.zeros(shape=(5, 5), dtype=np.uint8)