elevator woes

hi iv built a phisical elevator ,after a lot of work ,all bugs fixed except one ,when I call it from a distance it moves realy slow only speeding up when it comes within a certain range

is there a limit on movetotarget ?

heres the call script ,excuse the bad scripting im still learning

[

integer targetID;



default
{
state_entry ()
{llListen(1967, "", "", "";
}

listen( integer channel, string name, key id, string message )
{
// Become a physical object
llSetStatus(STATUS_PHYSICS, TRUE);





vector destination =(vector) message;

float range = 0.1;

targetID = llTarget( destination, range );


llMoveToTarget( destination, 0.1 );
}



at_target( integer number, vector targetpos, vector ourpos )
{


llTargetRemove(targetID);


llStopMoveToTarget();

llSetStatus(STATUS_PHYSICS, FALSE);

vector here=llGetLocalPos();
// llSay(0,"im here"+(string)llRound (here.z));

integer j;

integer count = 11;
string csv = llGetObjectDesc();
list my_list = llCSV2List(csv);

////////////////////////////////// check level and send to elevator button ///////////////////
for (j = 0; j < count; j++)

{

float end= (llList2Float(my_list,j));
// llSay(0,"ist"+(string)end);


if(llRound (here.z)==llRound (end))
{ llSetObjectName((string)j);llMessageLinked(4, 0, (string) j, NULL_KEY);jump over;}


if(llRound (here.z)==llRound(end)+1)
{ llSetObjectName((string)j);llMessageLinked(4, 0, (string) j, NULL_KEY);jump over;}


if(llRound (here.z)==llRound(end)-1)
{ llSetObjectName((string)j);llMessageLinked(4, 0, (string) j, NULL_KEY);jump over;}










}


@over;

llTriggerSound(llGetObjectName(), 1.0);


}
}



]