Staking is very slow due to network weight which is a good thing as it indicates strong security of the chain. The block rate is in line with design which is good.
With 100k you will relatively quickly within a few hours get 1 stake of 2.8 coins. Then the 100,002.8 will split into 2 input blocks of ~50,001 coins each which will take slightly longer and will give you two stakes, 2.8 coins each. Then the 50,001 will each split into ~2 blocks each of 25,000. It will take slightly longer again and then you will get 4 stakes of 2.8 coins each. This will carry on until your input blocks are very small. When they get too small combine them, but all your blocks over time will all hit a stake, it might just take a long time if they become too small. Whether you stake with 100k in one block or 100 coins in a block both will give you 2.8 coins when they hit a stake.
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