Re: Z axis Not working well

Hoi Hoi hoi hoiiii Hij doet het!!! :-)

Thank You Obewan!
Now I can finally move the Z axis up and down also with 10MM I'm so happy with that,
I also thought something was broken!
.
I hope I can ask another question?
Because now the whole printer goes slowly and I have put the printer on the LCD faster (speed 150/175)
Maybe I did something wrong or misunderstood.
I'll show a few pieces of my Marlin:

#define DEFAULT_AXIS_STEPS_PER_UNIT { 80, 80, 4000, 770 }

/**
* Default Max Feed Rate (mm/s)
* Override with M203
* X, Y, Z, E0 [, E1[, E2[, E3[, E4]]]] { 200, 200, 5, 25 } was het, nu is de 5 = 2 - Rob
*/
#define DEFAULT_MAX_FEEDRATE { 200, 200, 2, 25 }

/**
* Default Max Acceleration (change/s) change = mm/s
* (Maximum start speed for accelerated moves)
* Override with M201
* X, Y, Z, E0 [, E1[, E2[, E3[, E4]]]]
*/
#define DEFAULT_MAX_ACCELERATION { 3000, 3000, 100, 10000 }

.
if I remember correctly the { 200, 200, 2, 25 } Was before { 300, 300, 2, 25 } (Seen in a video from Thomas Sanladerer)
.
#if ENABLED(Z_SAFE_HOMING)
#define Z_SAFE_HOMING_X_POINT ((X_MIN_POS + X_MAX_POS) / 2) // X point for Z homing when homing all axis (G28).
#define Z_SAFE_HOMING_Y_POINT ((Y_MIN_POS + Y_MAX_POS) / 2) // Y point for Z homing when homing all axis (G28).
#endif

// Homing speeds (mm/m) was (4*60) = (2*60) Rob
#define HOMING_FEEDRATE_XY (50*60)
#define HOMING_FEEDRATE_Z (2*60)

//=============================================================================
//============================= Additional Features ===========================
//=============================================================================

Can the speed be put back a bit?
May it be possible to increase the speed again?

friendly greetings from The Netherlands!
(location Rotterdam)
Rob.