Wingulls Abound

Anyone else feel like cave/ water chaining gets ludicrously hard/ difficult after only a few chains? I know it's supposed to get harder and harder to keep the chain going, but the exponentially increased speed before they run away combined with the fact they constantly move locations to be unnecessarily difficult.

I might not complain if it weren't for the fact that DexNav chaining in the grass doesn't seem to be affected by the supposed increase in tempo. I've been able to get a 100+ chain in the grass, but can barely break 10 for cave/ water chains because of a myriad of reasons:

• i happened to be standing in the spot the pokemon wanted to appear, so it runs away.

• the tempo increases causes it to run away faster than I can slow walk towards it, having to travel from one side of an area to the other.

• a slight slip of the thumb causes me to move normally and scare it away.

• etc.

Am I just bad, or is anyone else having this issue?