Slippage is the price difference between when you submit a transaction and when the transaction is confirmed on the blockchain.
The point is, there is a time lag between when you confirm the transaction and when the blockchain confirms the transaction. Between these two confirmations, the price of the asset can change a little or a lot.

You can increase or decrease your slippage tolerance percentage for different situations to make sure, for example, that your transaction is taken into account.
If you are trading during the peak period, expect the% slippage to fluctuate quite dramatically.
If you set your slippage tolerance too low, your transaction will not be confirmed by the blockchain.

Pairs with more than $1M USD weekly trading volume will be considered to be promoted, receiving their own farm. Liquidity providers will thus be able to stake their LP tokens for additional MEX rewards, which will be allocated from the MEX issuance.