Constant ping spikes

Did some tests at 2:00 am local time
SQM off, wired connection, wifi off > http://www.dslreports.com/speedtest/61424304
SQM on, wired, wifi off > http://www.dslreports.com/speedtest/61424351
SQM on, wired, wifi on, with local servers > http://www.dslreports.com/speedtest/61424712

fast.com speed test with 8 to 16 streams, minimun 60s duration
dl: 5.3mbps up: 290 kpbs
unloaded 53 ms
loaded 76 ms

and the mtr log after some tests:

Host                             @Not a TXT record                                                         Loss%   Snt   Last   Avg  Best  Wrst StDev
                                                   @Not a TXT record
                  1. (waiting for reply)                            @Not a TXT record                        0.0%    86   22.4  26.4  21.9  72.5   8.8
 3. AS???    100.122.19.129 (100.122.19.129)                                         @Not a TXT record       1.2%    86   40.3  44.4  39.1  89.4   8.8
 4. AS???    100.122.17.178 (100.122.17.178)                                                          @Not a TX5 recor6   47.5  58.7  46.5 646.1  65.7
 5. AS???    100.122.25.87 (100.122.25.87)                                                                   0.0%    86@Not a1  61.1cord.8 633.2  71.5
 6. AS15169  72.14.218.158 (72.14.218.158)                                                                   0.0%    85   37.5  53.1  36.0 623.1  75.8
 7. AS15169  108.170.251.65 (108.170.251.65)                                                                 1.2%    85   37.1  42.5  37.1  81.4   9.3
 8. AS15169  108.170.228.5 (108.170.228.5)                                                                   0.0%    85   41.9  45.8  41.1 107.1  10.3
 9. AS15169  dns.google (8.8.8.8)                                                                            0.0%    85   37.7  48.2  36.8 632.8  64.7