Wired vs Wireless Tracert/Ping times much different

We have a wireless network with workstations running a web-based application off a server in our datacenter.  We have a 4.5MB pipe going to the datacenter from our location.  The application run off of our wireless network is sluggish.

When I do a tracert from a wired workstation vs a wireless I get some interesting results but I'm not sure why this would be.

Here is the output from the Wired workstation:
U:\>tracert ewebbridgem

Tracing route to ewebbridgem [172.28.122.111]
over a maximum of 30 hops:

  1    <1 ms    <1 ms    <1 ms  172.24.128.1
  2    <1 ms    <1 ms    <1 ms  172.24.128.2
  3    15 ms    11 ms     6 ms  172.26.0.69
  4    29 ms    12 ms    12 ms  172.26.0.1
  5    31 ms    21 ms    26 ms  172.26.0.2
  6    15 ms    19 ms    15 ms  172.28.8.250
  7    15 ms    15 ms    15 ms  ewebbridgem [172.28.122.111]

Trace complete.

Here is the output from the Wireless workstation:
C:\>tracert ewebbridgem

Tracing route to ewebbridgem [172.28.122.111]
over a maximum of 30 hops:

  1     3 ms     4 ms     8 ms  172.24.49.3
  2     2 ms     1 ms     1 ms  172.24.112.25
  3     3 ms     2 ms     7 ms  172.24.128.2
  4    13 ms    15 ms    14 ms  172.26.0.69
  5    74 ms    69 ms   106 ms  172.26.0.1
  6   151 ms   148 ms   127 ms  172.26.0.2
  7   238 ms     *      159 ms  172.28.8.250
  8   150 ms   185 ms    93 ms  ewebbridgem [172.28.122.111]

Trace complete.

The response times from my internal routers the 127.24 is resonable from both the wired and wireless networks.

Why would the response times from the route through the pipe to the data center be so different wired vs wireless?  Its taking the same path once it gets to 172.24.128.2 but the wireless is very sluggish.

Thanks for the help!